 If you liked GTO |  ...then you might like Kyou kara Ore wa!! |
Both are likeable, manly, rebellious and funny series of the school-comedy-slice of life genre, and both involve delinquents, students, gangs, fights, rivalry, friendship. The main characters in GTO are older than the ones in Kyou Kara Ore Wa, but the style and hilarity level are overall the same.
report Recommended by RenaPsychoKiller
Both series share a delinquent as its protagonist whose misadventures are filled with girls, helping out people and getting into gang fights. If you're looking for enjoyable Shounen manga, then these two are for you.
report Recommended by arimakenshin
You will probably enjoy GTO.
report Recommended by cancerowns