If you liked
GTO
|
...then you might like
Medaka Box
|
Like in Medaka Box, the main character of GTO starts his career at school having to prove himself but slowly wins over the hearts of, well anyone, through unconventional methods. It's a bit hard to explain, so it's just best if you just check it out yourself.
If you liked
Zombie Hunter
|
...then you might like
Deadman Wonderland
|
Both series are set (for the best part) in a prison(like) environment were the main characters are having a hard time to live to see another sunrise
If you liked
Gantz
|
...then you might like
Psyren
|
I like to think of Psyren as the shonen-version of Gantz. both series involve a "game" with real lives at stake, set up by some mysterious person, while the main characters try to beat the game to win back their freedom or for other goals later realizing there´s more at stake
If you liked
Jigoku Shoujo
|
...then you might like
Mononoke
|
In both series the main character gets involved with hatred in different forms and how deceiving humans can be. Both series include a lot of illusions and/or other paranormal things. Also these deceiving humans usually get punished and with that the case is solved. And for another thing, both Soundtracks for the series were composed by Takanashi Yasuharu