disclaimer: tags/genres grabbed from aniDB and/or ANN. I haven't watched the anime myself yet.
comedy action romance sci-fi school life drama fantasy adventure ecchi short episodes sequel
Ahiru no Sora
He’s short, weak, and has just transfered to a new school. Kurumatani Sora is the main character in this story who loves basketball. He has been shooting hoops ever since he was little and has been trying to grow tall just like his mother, who "used" to be a basketball player.
sports
Urashimasakatasen no Nichijou
School life -- it’s an experience that everyone should have, and no one should take for granted. Of course, everyone knows that the most enviable way to spend high school is as the most popular person in class. Transfer student Urata has decided that his high school debut will be brilliant, and as he reaches nervously for the door -- it happens. In his way stand fellow high school students Shima, Sakata, and Senra! Are they enemies? Allies? Or something else entirely?! This heart-pounding transfer school youth story is about to begin!
school life, [short 5min]
Hataage! Kemono Michi/Kemono Michi - Rise Up
Masked wrestler Genz Shibata likes all kinds of animals and creatures. One day he is summoned to another world, where a princess asks him to help kill magical beasts, but he gets mad and puts her in a German suplex. Instead, he begins life as a pet shop owner in the other world.
comedy, fantasy
Shinchou Yuusha - Kono Yuusha ga Ore TUEEE Kuse ni Shinchou Sugiru
Cautious Hero: The Hero Is Overpowered but Overly Cautious - The goddess Lista summons a hero who excels in every area to assist her. He’s everything she expected him to be except for one, tiny thing: this anxious hero can’t do anything unless he’s absolutely sure nothing can go wrong.
adventure, comedy, fantasy
Honzuki no Gekokujou - Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen
Ascendance of a Bookworm: I`ll Do Anything to Become a Librarian! - A certain college girl who’s loved books ever since she was a little girl dies in an accident and is reborn in another world she knows nothing about. She is now Maine, the sickly five-year-old daughter of a poor soldier. To make things worse, the world she’s been reborn in has a very low literacy rate and books mostly don’t exist. She’d have to pay an enormous amounts of money to buy one. Maine resolves herself: If there aren’t any books, she’ll just have to make them! Her goal is to become a librarian.
fantasy, slice of life
Ore wo Suki nano wa Omae dake ka yo/Oresuki - Are You the Only One Who Loves Me?
Kisaragi Amatsuyu is invited out alone by the cool beauty upperclassman Cosmos and his childhood friend Himawari. Expecting to hear their confessions, he triumphantly goes to meet each of them in turn. But Cosmos and Himawari both instead confess to Amatsuyu that they like his friend. Amatsuyu fights this lonely battle, but there is another girl who is looking at him. She is a gloomy girl with glasses and braids. Amatsuyu finds that he hates her, because she’s always turning her sharp tongue only on him and finding enjoyment in his troubles. But it turns out that she’s the only one who actually does like him.
comedy, romance
Houkago Saikoro Club/After School Dice Club
Takekasa Miki is a timid homebody who doesn’t find fun in the kinds of activities that most of her classmates do. In fact, she doesn’t know what "fun" truly is for herself until classmate Aya just misses running her over on an out-of-control bike. During an ensuing exploration of Kyoto, they run across class rep Midori, who seems to be contravening her own rules about not being out in certain places in the evening, and follow her to Saikoro Club, an analog game store where she works. As Miki and Aya try out a board game, with some reluctant coaching from Midori, Miki starts to realize that maybe this kind of activity is where "fun" lies for her.
comedy, school life
Choujin Koukousei-tachi wa Isekai demo Yoyuu de Ikinuku you desu!
High School Prodigies Have It Easy Even in Another World - Seven Japanese high school prodigies have taken the world by storm, exercising their mind-blowing abilities in everything from politics to entertainment. But when their plane crashes one day, these geniuses awaken to find themselves in a different realm-one that’s home to magic and beast folk! While such strange new surroundings might throw an average person for a loop, these prodigies take their situation in stride...and then some! With the greatest minds and talents known to Earth, this dream team is about to turn the other world on its head!
fantasy
Azur Lane The Animation
Azur Lane, a combination of all the different Camps of the world, was once successful in repelling the underwater menace of the Siren. Now splintered, they must face a new threat in Red Axis, former allies who crave to wield this otherworldly Siren technology for their own nefarious desires!
action
Null Peta
Girl genius Null has just lost her beloved big sister Peta in an accident. But don’t you worry! She’ll just use her naturally gifted intelligence to bring her big sister back as a robot! But is her newly-revived big sister just a little different than before? It’s time for the wacky comedy hijinks of little sister Null and big sister robot Peta! "Big Sis! Your plug fell out of the wall!"
comedy, sci-fi
Chuubyou Gekihatsu Boy/Outburst Dreamer Boys
Hijiri Mizuki just transferred schools, but her chances of having a quiet high school life shatter when she meets the eccentric members of the Hero Club! These "chunibyo" dudes and their youthful delusions of grandeur quickly sweep Mizuki into a world of outrageous hijinks and nonstop fantasy. Noda dreams of becoming a hero. Takashima, resident otaku, longs to date only 2D girls. Tsukumo fancies himself the school’s master manipulator. And then there’s Nakamura, a reincarnation of an angel... or a devil, depending on the day. Mizuki has her work cut out for her in the Hero Club, because while their delusions might be the stuff of fantasy, the trouble they cause is as real as it gets!
comedy, school life
Mairimashita! Iruma-kun/Welcome to Demon School! Iruma-kun
Ikoma is a kind-hearted 14-year-old boy whose parents sell him to demons for their own selfish interests. However, the demon he is sold to has no grandson of his own, so he dotes on Ikoma and sends him to demon school.
comedy, fantasy, school life
Val x Love
High schooler Akutsu Takuma has learned to accept his lonely lot in life and is content surrounded by his studies, but when the god Odin taps him to save the world alongside nine Valkyries fueled by intimacy, Takuma can say good-bye to his solitary existence.
comedy, harem, romance, school life, supernatural
Keishichou Tokumubu Tokushu Kyouakuhan Taisakushitsu Dainanaka - Tokunana
Special 7 - Special Crime Investigation Unit - Long ago, the world was populated with all kinds of different races living alongside humans including elves, dwarves, vampires, and homunculi. At the top of the hierarchy were dragons who ruled over everything. Since then, the dragons have all but disappeared and the remaining races continue to coexist together. 2X19, Tokyo. The peace that has continued in the world is threatened by a criminal organization called "Nine" whose goal is to claim for themselves the powers of the dragons of old and use it to change the world. A special division of the police department is created to oppose Nine. Nicknamed Tokunana, the team is composed of experts to fight against Nine - a boss, a samurai, a ninja, a playboy, an analyzer, a sniper, and an ordinary officer new to the unit who must prove his worth.
action, police
Actors - Songs Connection
Within a sprawling academic metropolis lies an exclusive academy where students are encouraged to join clubs such as singing and archaeology to earn points for recognition. The most important of these is the big singing contest where all contestants have to sing in front of the entire school!
music, school life
XL Joushi

[short 5min], [ecchi TV ver - H web ver]
Africa no Salaryman
Lion, Lizard, and Toucan live the lives of office workers in a capitalist society in Japan, while also dealing with their unique situations as animals living beyond the savanna and the food chain.
anthropomorphism, comedy, daily life
Babylon
Shinki is a new "autonomous zone" being established in western Tokyo to accommodate the metropolis’ ever-growing population, and the upcoming mayoral elections have dominated discussion in the media for weeks. In the middle of investigating pharmaceutical law violations for the Tokyo Public Prosecutor’s Office, Prosecutor Seizaki Zen and his assistant Fumio Atsuhiko stumble on to evidence linking the bizarre suicide of an anesthesiologist to one of the mayoral candidates, Nomaru Ryuuichirou. Suspecting a scandal that could tear Shinki’s burgeoning political scene into pieces, Zen and Atsuhiko begin pulling at the threads of the case, and with the body count rising, its impossible to say just how deep the corruption in the city could possibly go.
conspiracy, detective, thriller
Phantasy Star Online 2 - Episode Oracle
It covers the first three episodes of the original game and an original story. With the advent of Photon technology, the spacefaring Oracle fleet searches for new planets to explore. They combat the Falspawn, abominations that consume all life in their path, with the fearless heroes of the ARKS organization. When his graduation ceremony is crashed by a Falspawn attack, young cadet Ash realizes that he’s just been thrust in the middle of a universal-scale conflict.
action, adventure, sci-fi
Stand My Heroes - Piece of Truth
Newcomer Izumi Rei is joining the narcotics investigation unit of the Ministry of Health, Labour and Welfare. As a scout for the newly created STAND (Stand Alone National Department), she’s going to recruit the most unique of agents, investigators, and informants to make up a specialized team to safeguard the country. And their first mission is to discover the hazardous drug destroying the lives of innocent Tokyo citizens.
mystery, romance
Watashi, Nouryoku wa Heikinchi de tte Itta yo ne!/Didn't I Say to Make My Abilities Average in the Next Life?!
When she turns ten years old, Adele von Ascham is hit with a horrible headache - and memories of her previous life as an eighteen-year-old Japanese girl named Kurihara Misato. That life changed abruptly, however, when Misato died trying to aid a little girl and met god. During that meeting, she made an odd request and asked for average abilities in her next life. But few things - especially wishes - ever go quite as planned.
comedy, fantasy
Kandagawa Jet Girls
"Jet-Racing" has become a mega-popular extreme sport across the world, and with good reason! The "Jetter" pilots a high velocity watercraft and is paired with a "Shooter" who blasts rival teams with a hydro gun. It all adds up to explosive, wet-and-wild action as they race to the finish and compete to earn supremacy. Among those competing is Namiki Rin, and racing is in her blood. Rin aspires to become a legendary Jetter just like her mother, and after meeting the cool and gorgeous Shooter Aoi Misa, it looks like Rin’s dreams are finally in reach with a partner who shares her passion! Every race brings them tighter together as a team and closer than ever to their dream of becoming the best Jet Racers on the water.
sports, ecchi
Beastars
At this high school, instead of jocks and nerds, the students are divided into predators and prey. At a high school where the students are literally divided into predators and prey, it’s personal relationships that maintain the fragile peace. Who among them is a Beastar - an academic and social role model destined to become a leader in a society naturally rife with mistrust? Last night at Cherryton Academy, an herbivore student was killed and eaten. Among the members of the drama club, the herbivores’ suspicions naturally turn to their carnivore classmates... The prime suspect? Legosi, a large wolf. But he wouldn’t hurt a fly - or would he? And will dwarf rabbit Haru bring out the beast in him? Or are his feelings for her...something else?
drama, psychological, slice of life
Mugen no Juunin - Immortal/Blade of the Immortal
Edo, an era of warriors. There lived an immortal man, the Slayer of Hundreds, ’Manji.’ He meets Rin, who has sworn vengeance for her parents. Rin’s grudge is against a group of swordmasters - Ittou-ryu. She asks Manji to be her bodyguard on her journey. He refuses, but then sees his late sister in Rin. So began the violent struggle that would bring even the immortal Manji to his knees.
action, adventure, historical, samurai, supernatural, [remake]
Assassins Pride
In a world where only nobles wield the sacred power of mana to wage war against the creatures of darkness, a curious absence of ability places young Melida in a precarious position. Under the guise of tutelage, Kufa, a ruthless assassin, is sent to assess Melida’s abilities and determine if she is the true-born heir of the prestigious Angel family. If she does not measure up to her family’s expectations, another, more ruthless plan will be set in motion...
fantasy
No Guns Life
Ex-soldier Inui Juuzou has one question - who turned him into a cyborg and erased his memories? After the war, cyborg soldiers known as the Extended were discharged. Inui Juuzou is one of them, a man whose body was transformed, his head replaced with a giant gun! With no memory of his previous life - or who replaced his head and why - Inui now scratches out a living in the dark streets of the city as a Resolver, taking on cases involving the Extended. When a fellow Extended showed up in Inui’s office - on the run from the Security Bureau with a kidnapped child in tow and asking for help - Inui should have just thrown the guy out. But Inui’s loyalty to a brother Extended makes him take the job. Keeping the child safe won’t be easy, since everyone seems to want to grab him, from street punks to the megacorporation Berühren, who have sent out a special agent that knows exactly how to deal with the Extended...
action, sci-fi
Hoshiai no Sora/Stars Align
The boys’ soft tennis club is the joke of the middle school. Not only does it not win nearly as much as the girls’ team, its members also come off as lazy, entitled, and just generally lame, with the notable exception of team captain Shinjou Touma. He’s constantly frustrated by his teammates’ behavior, but things come to a head when the president of the student council announces that clubs with poor performances will no longer receive school funding. Therefore if the boys’ soft tennis club doesn’t win at least one match at the summer tournament, they’re history. Although the whole team agrees that this is unfair, only Touma is truly upset, and he tries desperately to think of a way to turn things around. When a kid he knew from childhood, Maki, moves back to town and proves to have grown up to be athletic, Touma thinks he’s saved. But Maki’s got his own issues to deal with, and even if he agrees to join Touma’s club, there may not be much he can do anyway.
tennis, drama, slice of life
Kabukicho Sherlock/Case File n 221: Kabukicho
The lights shine brightly in neon drenched Kabukichou, but where there’s light there’s shadow. In the midst of all the chaos, Mrs. Hudson’s tenement and its eccentric detectives stand firm. Rakugo-loving, fastidious Sherlock Holmes is joined by a pair of enchanting sisters, a former policeman and a reformed yakuza member, as they investigate their most difficult case yet when "Jack the Ripper" embarks on a deadly crime spree.
comedy, drama, mystery
Tenka Hyakken - Meiji-kan e Youkoso!
"Mitsurugi" are maidens who are physical incarnations of ancient swords. They have pledged to live peaceful lives after the era of warfare, but are now returning to battle to fight a new foe that has arisen during an alternate version of the Meiji Era, three hundred years after the Battle of Sekigahara.
action, adventure, fantasy, historical, martial arts, supernatural, [short 6min]
Rifle is Beautiful/Chidori RSC
Kokura Hikari is a first-year high school girl who loves rifle shooting. She entered Chidori High School because it had a shooting club, but finds that the club had been disbanded. She had only one day to find enough members to reform the club, but luckily was able to find three other first-year girls who she had met at a competition in middle school. Thus begins the daily activities of the Chidori High Shooting Club.
comedy, school life
Bananya - Fushigi na Nakamatachi

[sequel]
Radiant 2

[sequel]
Zoids Wild Zero

[sequel]
Granblue Fantasy The Animation Season 2

[sequel]
Aikatsu on Parade!

[sequel]
Fate/Grand Order - Zettai Majuu Sensen Babylonia
Fate/Grand Order Absolute Demonic Front - Babylonia
[sequel?]
Bokutachi wa Benkyou ga Dekinai!/We Never Learn - Bokuben 2

[sequel]
Kono Oto Tomare! Part 2

[sequel]
Fairy Gone Part 2

[sequel]
Ani ni Tsukeru Kusuri wa Nai! 3

[sequel], [short 4min]
Z/X - Code Reunion

[sequel]
Nanatsu no Taizai - Kamigami no Gekirin

[sequel]
Gundam Build Divers Re:Rise

[sequel]
Shokugeki no Souma - Shin no Sara

[sequel]
Shin Chuuka Ichiban!

[sequel]
Boku no Hero Academia 4

[sequel]
Sword Art Online - Alicization - War of Underworld

[sequel]
Chihayafuru 3

[sequel], [after 1st eps]
Psycho-Pass 3

[sequel], [after 1st eps]
High Score Girl II

[sequel], [after 1st eps]
Kengan Ashura Part 2

[sequel], [after 1st eps]
Pocket Monsters (2019)

[sequel?], [after 1st eps]