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
Hero Mask
When the headquarters of the SSC, an elite high-tech police organization, is assaulted by a lone man who should be dead they learn of the existence of strange masks that grant the users unnatural power. Meanwhile, attorney Sarah Sinclair secretly investigates the mysterious death of her friend and mentor, prosecutor Monica Cambel, suspecting her sudden death from "natural causes" was in fact murder.
Boogiepop wa Warawanai
There is an urban legend that children tell one another about a shinigami that can release people from the pain they may be suffering. This "Angel of Death" has a name: Boogiepop. And the legends are true. Boogiepop is real. When a rash of disappearances involving female students breaks out at Shinyo Academy, the police and faculty assume they just have a bunch of runaways on their hands. But Nagi Kirima knows better. Something mysterious and foul is afoot.
horror, mystery, [remake]
Egao no Daika/The Price of Smiles
On a planet far from Earth, there is a kingdom full of smiling faces. Princess Yuuki is 12 years old, and about to enter a sensitive age in a person’s life. Everyday, she cries, laughs, and sometimes, her heart throbs with excitement. All the while, she lives merrily in the royal palace. Filling her days with color are her loyal vassals: her tutor Reira, Izana who assists in political affairs, the leader of the chivalry Harold and then, there is her childhood friend and aide Joshua. Stella is 17 years old and a capable, reserved soldier. However, she is always smiling for smiling is essential to living.
action, fantasy, sci-fi
Papa Datte, Shitai

[short], [ecchi TV ver - H web ver]
Dororo
During the 1470s after the Wars of Onin and Bunmei in the Noto Peninsula of the Hokuriku District, Hyakkimaru, who lacks as much as 48 body parts, obtains a fake body and eliminates 48 monsters that were made from his body to retrieve his missing body parts.
action, samurai, supernatural
Ueno-san wa Bukiyou/How Clumsy You Are, Miss Ueno.
Ueno is the president of the science club at a certain junior high school. She’s a master inventor beyond her years but can’t seem to confess to her crush Tanaka.
comedy, romance
Pastel Memories
Akihabara is known as a shining beacon for otaku culture everywhere. But in a not-to-distant the future, that culture is on the decline due to a mysterious affliction causing widespread memory loss. As a result, Akihabara has lost its luster. However, in one of the few remaining otaku shops, Izumi and a handful of comrades hatch a plan to restore lost memories and return "Akiba" to its former glory.
action, adventure, sci-fi
Watashi ni Tenshi ga Maiorita!/Wataten! an Angel Flew Down to Me
Miyako Hoshino is a shy college student and otaku. Miyako’s younger sister Hinata, who is a fifth grader, has a classmate and friend named Hana. When they meet, Miyako falls for Hana at first sight.
comedy, shoujo Ai
Circlet Princess
In the near future, an advanced AR technology known as Mixed Reality System has become widespread and introduced to the world a new sport. Circlet Bout is particularly popular with high school girls with successful players achieving nationwide fame. Sasaki Yuuka has just transferred to Saint Union Academy, but can she revive its ailing Circlet Bout team?
action, sci-fi, school life, tournament
Rinshi!! Ekoda-chan
Ekoda-chan is from the countryside, living alone in the city. She’s a temp worker and a strong, carefree soul, with no solid plan for the future, who doesn’t care much about guys. She talks about how she lives her life and provides support to all those women trying to survive in the real life society. Based on a 4-panel manga of the same title, this omnibus form anime will feature a different director, character designer, voice cast, and anime studio for each episode.
comedy, [remake]
Mannaka no Rikkun

comedy, [short 5min]
Tate no Yuusha no Nariagari/The Rising of the Shield Hero
Iwatani Naofumi is an uncharismatic otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction. As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world!
adventure, fantasy
Kemurikusa
A story about three sisters struggling to survive in a desolate world surrounded by decaying buildings and red fog. The story revolves around Rin, a girl with an updo. There’s also Ritsu, the big sister who has cat ears and is always calm, and Rina, the innocent, cheerful one dressed in a maid’s costume. Just what is it that these sisters are after in this mysterious world?
action, sci-fi
Doukyonin wa Hiza, Tokidoki, Atama no Ue./My Roommate Is a Cat
A shy novelist adopts a cute stray cat and starts to slowly open himself to the world. Both his and the cat’s point of view are included in each story.
comedy, slice of life
Meiji Tokyo Renka
On the night of a crimson full moon, high school girl Mei Ayazuki, lured by the magic of mysterious magician Charlie, enters into a box. When she awakens, she’s in Tokyo during the Meiji Period. The lost and confused Mei is aided by Ougai Mori and Shunso Hishida, who take her in their carriage to the Rokumeikan, a lavish ballroom full of powerful high officials. where she meets historic figures such as Kyoka Izumi, Otojiro Kawakami, Yakumo Koizumi, and Goro Fujita. In this world, during the "Misty Hour" between sundown and sunup, "mononoke" appear. Those who can see them are called "Tamayori," and Mei herself possesses this power. As she navigates an unfamiliar life, romance begins to bloom between Mei and these men -- and the power of the tamayori will only strengthen their bonds. She may choose to never return to her original time.
romance, supernatural, time travel, reverse-harem
Virtual-san wa Miteiru/Virtual-san is Looking
Anime featuring VTubers such as Mirai Akari, Dennou Shojo Siro, Tsukino Mito, Tanaka Hime, Suzuki Hina, and Nekomiya Hinata.
comedy, music
Revisions
"This is a prophecy. Someday, the five of you will be put into terrible danger. And when that happens, you’re the only one who can protect everyone." Doujima Daisuke, a 2nd-year student in high school who was kidnapped when he was younger, experiences a strange phenomenon along with his friends Gai, Lu, Marimari, and Keisaku: "Shibuya Adrift". The center of the city of Shibuya is transported more than 300 years in the future. The people sent with it find nothing there but vast wastelands and forests, dotted with ruins... and hostile beings called "Revisions" that control massive mechanical monsters. As the monsters tear through Shibuya, someone appears to save the people: a girl with the same name, "Milo", as the one who helped Daisuke when he was kidnapped, who looks identical to her as well. She gives Daisuke and his friends weapons called "String Puppets" that they can pilot, and tells them to protect Shibuya. Daisuke has spent his whole life believing in the prophecy that Milo gave him when he was kidnapped, and he’s overjoyed that the time has come at last and at the power he’s gained. But the kidnapping incident tore the 5 childhood friends apart. An isolated city. An unknown enemy. An uncertain past and a prophecy of the future. The children fight the "future" to bring back the "present". No matter what, they’re going home...
sci-fi, mecha
Dimension High School
One day, on his way to high school, student Junpei picks up an unusual looking rock. Thinking nothing of it, he heads to class. While in the middle of a session, the rock comes to life and transports him and four others to an animated world. To make matters more interesting, the group is introduced to a giant sphinx who is determined to take over the world. Now, to protect their world from invasion, the group must work together as anime characters and real-world humans.
[anime and live action mix]
Girly Air Force
Mysterious flying creatures called Zai suddenly appear and overwhelm all of mankind’s aerial combat forces. To fight them, mankind modifies existing aircraft frames to create mechanized soldiers called "Daughters," which are operated by automated piloting mechanisms called "Anima" that have the appearance of human girls. The story begins when Narutani Kei, a boy who yearns to take to the skies, encounters a shining red aircraft and its pilot, an Anima named Gripen who has been named mankind’s trump card.
action, comedy, military, romance, sci-fi
Yakusoku no Neverland/The Promised Neverland
Emma, Norman, and Ray are the three most brilliant children the Grace Field House has produced in decades. Unlike in a typical orphanage, they, and their fellow children, eat well and are given an intensive education. However, despite living in a peaceful environment with fun games and a caring mother, there’s something not quite right. When six year old Connie is "adopted" by foster parents, she forgets her favorite stuffed rabbit, and Emma and Norman sneak out to return it to her. When they arrive at the scene, the two realize exactly why they had always been isolated from the outside world.
dystopia, tragedy
Go-toubun no Hanayome
One day, a poor high school second-year named Uesugi Futarou comes across a private tutoring gig with good pay. But his pupils are his classmates!! And they’re quintuplets!! A-and they’re all gorgeous girls, but they’re also troublemakers who hate to study and are on the verge of flunking out! And his first task is simply gaining the sisters’ trust?! Every day is a party! The curtain is rising on the Nakano quintuplets’ quirky romantic comedy with five times the cute!!
comedy, harem, romance
Grimms Notes The Animation
The game takes place in a world created by a beings known as "Story Tellers." At birth, all inhabitants of this world are bestowed with a "book of fate" where all their lives are written in advance. However, rogue Story Tellers known as Chaos Tellers are writing bad events into people’s books without them knowing. It is up to the holders of blank books of fate to seek out the Chaos Tellers and restore the world.
action, adventure, fantasy
Hulaing Babies
Anime centering on a group of young girls and their struggle as they aim to become Hula Girls.
[short 5min]
Domestic na Kanojo/Domestic Girlfriend
High schooler Natsuo is hopelessly in love with his cheerful and popular teacher, Hina. However, one day at a mixer, he meets a moody girl by the name of Rui and ends up sleeping with her. Soon after, his father announces that he’s getting remarried to a woman with two daughters of her own. And who shows up in tow, other than both Hina and Rui?! Natsuo’s outrageous new life starts now!
drama, romance, school life
Mahou Shoujo Tokushusen Asuka/Magical Girl Spec-Ops Asuka
When the Earth is threatened by the sudden appearance of undead creatures, a group of young women blessed with powers from a mysterious source rose to defeat them. Now, after three years of apparent peace, the same malevolent creatures have resurfaced. Five magical girls are once again conscripted to war as the Magical Girl Special Ops force, to defend mankind from an unholy nemesis.
sci-fi, fantasy, action
Bermuda Triangle - Colorful Pastrale
Mermaids are known worldwide as bewitching mythological creatures of the sea. Despite their charms and otherworldly powers, daily life for these beings comes with everyday problems. But there’s nothing that can’t be overcome with the support of friends. Follow the adventures of five young mermaids as they explore their town and the world around them in this delightful slice-of-life series that takes viewers to an enchanting world beneath the waves.
fantasy, slice of life, [spinoff of Cardfight Vanguard]
Kaguya-sama wa Kokurasetai - Tensai-tachi no Renai Zunousen
Kaguya Shinomiya and Miyuki Shirogane are two geniuses who stand atop their prestigious academy’s student council, making them the elite among elite. But it’s lonely at the top and each has fallen for the other. There’s just one huge problem standing in the way of lovey-dovey bliss - they’re both too prideful to be the first to confess their romantic feelings and thus become the "loser" in the competition of love.
romance
Endro~!
Naral Island, a continent with swords and magic in which humans and monsters coexist. The terrible Demon King lives there. In ancient times, the first-generation hero defeated the Demon King. Over the many successive generations since then, the Demon King has been resurrected, and the hero who opposes him has likewise reappeared. Girls attend a school for adventurers in order to defeat the Demon King when he appears again. Though a bit absent-minded, Yusha has the body of a hero. The holy elf Seyla’s trouble never ends because she is too serious. The cheerful warrior Fai loves to eat. Mei is a quiet otaku magician. As the four girls aim to be in the hero party, they live relaxed fantasy lives and show no sign of defeating the Demon King no matter how much time passes.
fantasy, magic
Kouya no Kotobuki Hikoutai/The Magnificent Kotobuki
In a barren frontier where people trade goods with each other in order to help each other survive, the Kotobuki Squadron are bodyguards for hire, led by a strict but beautiful squadron leader, an unreliable commanding officer, and a true artisan of a crew chief. Alongside pilots who don’t lack for personality, they take to the air in dogfights, letting the engine noise of their Hayabusa fighters ring out in the skies.
action, adventure, military
Fight League - Gear Gadget Generators

[after 1st eps night]
Saint Seiya - Saintia Shou

[spinoff]
BanG Dream! 2nd Season

[sequel]
Fukigen na Mononokean - Tsuzuki/The Morose Mononokean II

[sequel]
W'z

[sequel to Hand Shakers]
Katana Maidens - Mini Toji

[spinoff], [short 6min]
Mob Psycho 100 II

[sequel]
Ameiro Cocoa side G/Rainy Cocoa SideG

[sequel], short 5min]
3D Kanojo - Real Girl 2

[sequel]
Kakegurui x x

[sequel]
Date A Live III

[sequel]
B-Project - Zecchou Emotion

[sequel]
Kemono Friends 2

[sequel]
Manaria Friends

[spinoff of Rage of Bahamut], [short 15min]
Piano no Mori 2

[sequel]
Star Twinkle Precure

[sequel/spinoff]