 If you liked
Slam Dunk
|
 ...then you might like
Great Teacher Onizuka
|
both animes are from the 90's hence they have the same art style. both main characters are delinquents trying to change to be good. they are very funny and memorable characters and will make you come back for more.
It's not GTO at all, and the theme is different, but the two main characters resemble each other greatly. These two anime have the same feel and pacing to them.
if you watch GTO for onizuka, you'll probably like sakuragi hanamichi. Hanamichi is as dumb as, as direct as, as insane as, as inhuman as, as simple minded as Onizuka. Two of them approach to events is so funny and direct.
Hanamichi<=Onizuka...
If you enjoy Slam Dunk, you will likely enjoy GTO and vice versa. They are both classic anime comedies with a large fan base. Well written characters that you can't help but love and cheer for and a hooking plot that keeps you coming back for more. There are lessons to be learned and inspiring moments to be had in both animes. Overall, similar art and feel as well but this is also characteristic of the times when the animes were made.
The main viibes from the main character are more than similar to Onizuka. Both of them are quite idiots but reliable when needed
Similar comedy, both are circled around delinquents that try to find success one way or another in the real world. Mostly importantly, both are amazing and very enjoyable.