If you liked
Bokura ga Ita
|
...then you might like
Kare wa Tomodachi
|
Both have high school teenage romance, drama, backstabbing, obsession, lies, secrets, etc. They deal with first love and best friends liking the same girl. Both have love squares.. or even pentagons.
If you liked
Otome wa Boku ni Koishiteru
|
...then you might like
Kämpfer
|
Both are harem. The main guy(who somehow/somewhat ends up looking like a girl) transfers to a school, which is for girls only(in Kampfer's case, it's the other SIDE of the school). They act a bit girly, but Mizuho is somehow more manly(in my opinion). They are also very beautiful in their female forms(even more than their real male-self), and is popular in school. Kampfer is more inappropiate, though.
If you liked
Allison to Lillia
|
...then you might like
Senjou no Valkyria
|
The theme/setting is somewhat similar about the past, war, and whatnot. They both have romance, drama, and action. Art style kinda resembles each other, too, in a way. They, also, are very nice anime. :)