 If you liked
FLCL
|
 ...then you might like
Beelzebub
|
FLCL's a somewhat old supernatural, school, comedy, randomness-infused series that's lost some of its well-deserved popularity in the face of newer series: DMC, Cromartie, Gintama, and Beelzebub. Still, I consider it the top of the line for an intense, fun, laugh tear jerking adventure.
Beelzebub and FLCL will give you the same treatment, a hilarious thrill ride that's just too good to miss out on.