School Rumble, Saiki Kusuo no Ψ-nan Recommendations
School setting with really crazy comedy and large cast of characters.
There are some similiar archtypes (for example, hot-blooded class president, delinquent who tries to leave his past behind, etc.).
Saiki kinda feels like a parody of School Rumble at times with similar character archetypes, yet instead, in Saiki we get some poking fun of archetypes through breaking of the 4th wall and such. Regardless, the shows have a very similar feel except Saiki isn't based around the love aspect. If you loved School Rumble for its comedy and charm, you will probably adore Saiki as well and vice versa.