If you liked
To LOVE-Ru
|
...then you might like
Peter Grill to Kenja no Jikan
|
Both are parody, ecchi, harem, anime where the main protagonist fails beautifully to have a single platonic relationship with the girl he really likes. They have a very similar kind of humor, feel really similar in general and they both have great plot.
If you liked
Suzumiya Haruhi no Yuuutsu
|
...then you might like
Ano Natsu de Matteru
|
aliens, making a bad movie, having fun in the summer, comedy, love, life....
If you liked
Yumekui Merry
|
...then you might like
Black★Rock Shooter (TV)
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somewhat simular art. fighting nightmares
If you liked
Tenshi na Konamaiki
|
...then you might like
Kaichou wa Maid-sama!
|
Tenshi na Konamaiki is a mix of Kaichou wa Maid-sama!, kashimashi and great teacher onizuka. from kashimashi you have the gender switch and how it would be like to become a girl. from GTO you have the punks, muggings, clever plots and somewhat simular artwork. The Kaichou wa maid sama part is less appearent. Both mains are tomboys who are suddenly found attractive by all the boys and they are both disgusted by guys behaviors and try to change them. Misaki-Usui and Megumi-Genzo both oneway relationships. However since all the guys in Tenshi are like the idiot-trio you kinda end up hoping for a yuri ending insted. both anime use the funny dummy-swaps.