If you liked
Isshuukan Friends.
|
...then you might like
Tanaka-kun wa Itsumo Kedaruge
|
They both share this dreamy spring atmosphere, contain comedy and romance and are very easygoing slice of life anime.
If you liked
Serial Experiments Lain
|
...then you might like
Kachou Ouji
|
Classic nineties anime that are simply different from the rest in both story and presentation. SEL is darker, while KO more comedic, but they are amazing adventures that you should've seen at least once in your life.
If you liked
Mugen no Ryvius
|
...then you might like
M3: Sono Kuroki Hagane
|
Both are psychological mecha anime, where fighting is not in the foreground. They are fairly dark and tend to be quite easily overlooked.
If you liked
Air
|
...then you might like
Kanon (2006)
|
Mysterious, tragic harem series. In both, a young male comes to a town, confronted with the many problems of the female characters. Both Air and Kanon have a similar drawing style, as they're made by KyoAni.
If you liked
Ano Natsu de Matteru
|
...then you might like
Tsuritama
|
What makes these two series so alike is that both deal with aliens that come to earth. Both emphasise the importance of having friends; both take part in summer and both are feel-good anime.