If you liked
Busou Renkin
|
...then you might like
Monochrome Factor
|
Both are fantasy shounen series. Both male leads have strong sense of righteousness and are somehow stupid in a way and of course, both of them are fighting to save the world.
If you liked
Busou Renkin
|
...then you might like
Ayakashi
|
Both begin with a mysterious girl and awakening supernatural powers within the main character. In both series, the main characters fight to protect people around them - in one against ayakashi, in the other against homunculus.
If you liked
Fake
|
...then you might like
Yami no Matsuei
|
Both are Shounen-ai series with a lot of comedy where the main heroes are a team of detectives.
If you liked
|
...then you might like
Inu Jikan
|
About girls who love dogs more than everything else.
If you liked
Ichigo Channel
|
...then you might like
My Girl
|
Both are romantic stories about girls that are involved in showbiz and hiding their true identity.
If you liked
Ookami to Koushinryou
|
...then you might like
Hatenkou Yuugi
|
If you liked one, you should like the other. Although Hatenkou Yuugi is more of an action and Spice and Wolf is more serious, both are good fantasy series with quite similar feeling. And as for leads... I think that Horo and Rahzel are very alike in many aspects.
If you liked
Kiniro no Corda: Primo Passo
|
...then you might like
Marginal Prince: Gekkeiju no Ouji-tachi
|
Both are about a group of "special" students, variety of characters and animation are quite alike too. Both series also have very similar feeling to them.