
If you're looking for manga similar to Assassination Classroom TV, you might like these titles.
A sloppily worn lab coat, lifeless eyes just like a dead fish's. He's the most un-teacher-like high school teacher, Sakata Ginpachi. The class he's in charge of, 3Z, is filled with 'intensive' students who have created a horrifying amusement park.
When Hiroya Matsumoto joined the Right Trading Company, he never thought he'd be anything more than a regular employee. But as it goes, he became the fifth member of a superhero team called the Shinesman. The Shinesman's mission is to defend the Earth against enemies from the Planet Voice. But amidst all this, Hiroya also has to look after his little brother, make a living, and do his superhero jobs clad in lame suits and equipped with equally lame weapons such as business cards! Can the Shinesman succeed in the face of utter comedy... I mean... terror?!
A unique take on the 'assasin-for-hire' story, as the assasin 'Tsubame' actually is four different people with four different modes to kill. Penguin is a small quiet kid who has beastly sniper skills, Washi (Owl) has a huge gattling gun grafted to his shoulder to mow down his enemies for the sake of 'justice', Suzume the cute girl who wields dual pistols, and of course Tsubame himself who prefers huge rifles and martial arts. The four have a mechanical arm which when switched allows one of the others to take control. How did Tsubame end up this way? What is the secret of the arm?
Kurosaka Gengo is just your normal highschool boy, who likes to skip cleaning duty. However, Gengo's peaceful life ends when he comes across a strange man. That man claims to be an alien and is in need of Gengo's body to survive on earth. Not only does Gengo deal with the alien, but with others that are after him!
The SOS Brigade's adventures couldn't get any more outrageous…you've never met Haruhi-chan! Nagato has gone otaku! Asakura is her pint-size prisoner/plaything! Mikuru’s so cute she turns into a sheep!
Eren and Mikasa enter a new school-- Titan Junior High! However, Eren's hated Titans for years-- can he get along with his new (harmless?) classmates? Featuring all of the characters from the main series as you've never seen them before, this series is sure to delight fans of Attack on Titan with a human vs. Titan volleyball match, a Titan rock band, and much more!
In the story, the world is in trouble because Washu is stirring up trouble again. In order to save the world from crisis, Tenchi goes undercover as a teacher in a girls' school. However, many problems arise as Tenchi is predisposed to finding trouble.
Hoshino Shiho is known in school as a major delinquent, and there are even three students who repeatedly ask her to be a part of her 'gang.' While Shiho does talk pretty rough, and she does beat up bullies when they're in her way, she really doesn't think of herself as a delinquent. One night, in her family's hot spring inn, a spaceship crashes into the bath house. The alien from inside, "Dejiraoki Seco Omega," claims he has come to conquer and destroy Earth, as he has destroyed many planets before it. Luckily for Shiho, another alien soon shows up, who manages to leash Omega to a video-game-like controller. Finding herself in possession of this controller, Shiho promptly uses it to force him to take responsibility for the mess he's made of the bath house. Now Shiho has an angry alien under her control, but who knows what else is out there to threaten the Earth?