If you liked
Mirai Nikki (TV)
|
...then you might like
Danganronpa: Kibou no Gakuen to Zetsubou no Koukousei The Animation
|
Similar MC(both are pretty much Shinji Ikari) who are stuck into a survival game, and get help from one of the most popular girls. If you liked Future Diary you'll like DanganRonpa.
If you liked
Serial Experiments Lain
|
...then you might like
Aku no Hana
|
Very similar "empty" atmosphere. Realistic character designs and each episode has little action or talking. Also very slow paced shows.
If you liked
FLCL
|
...then you might like
Sasami-san@Ganbaranai
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Both are completely random anime that can be described as pure ADHD. They are both very fast paced and have symbolism and strange camera angles.
If you liked
NHK ni Youkoso!
|
...then you might like
Ore no Imouto ga Konnani Kawaii Wake ga Nai
|
Both reference otaku culture a lot and involve the character getting help and counseling. OreImo is definitely more light and NHK is more psychological. They both are pretty funny though, if you like otaku humor.
If you liked
Ano Natsu de Matteru
|
...then you might like
Tsuritama
|
A boy's normal life is suddenly interrupted by a spontaneous alien person. Both have bright colors and a likable cast of teenagers having fun over summer.