If you liked
Oyasumi Punpun
|
...then you might like
Boys on the Run
|
In both manga the main characters are kind of pathetic and still struggle to "find themselves" and have a sort of unrequited or suffering from heartbreak. Both also utilizes a lot of dark humour and tragedy.
If you liked
Aria the Animation
|
...then you might like
Fuujin Monogatari
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Both shows have great music that creates a relaxing and laid back atmosphere and both have a supernatural elements in their respective stories.
If you liked
Hotaru no Haka
|
...then you might like
Tokyo Magnitude 8.0
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Both are stories that deal catastrophes and it's effects in a realistic approach. Both have siblings as the main characters whom develop a strong bond through out.
If you liked
Juuni Kokuki
|
...then you might like
Legend of Basara
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Both have a fantasy setting, though Juuni Kokuki has more of an ancient China like setting while Legend of Basara has more of a medieval one and both have strong female leads whom are seen as "the chosen ones".
If you liked
Liar Game
|
...then you might like
Tobaku Haouden Zero
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Both have main characters that are geniuses and both are about games where it is possible to win a ridiculously large sum of money, also both main characters aim to take down the organization involved in their respective stories.
If you liked
Ohikkoshi
|
...then you might like
Solanin
|
Ohikkoshi and Solanin share a lot of similarities : they are both about the lives of a group of students in their 20s, the characters seem to be involved in bands and both of them have elements of drama, comedy and romance.
If you liked
Azumanga Daiou The Animation
|
...then you might like
Minami-ke
|
Both doesn't rely on parodies or referencing other anime shows for comedy,they both usually depending on the wacky and eccentric characters.
If you liked
Gintama
|
...then you might like
Tentai Senshi Sunred
|
Both shows have a similar type of humour and has a similar feel to it and a similar type of comedic approach, while Gintama parodies a broad range of anime, Tentai Senshi Sunred only parodies the "Super Sentai" genre i.e stuff like Power Rangers.
If you liked
Gintama
|
...then you might like
Hayate no Gotoku!
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Both shows does a lot of parodies from different anime and they have tendencies of braking the fourth wall.
If you liked
RideBack
|
...then you might like
Viper's Creed
|
Both have motorcycle type mechs and each show has some sort of military/government centric plots.
If you liked
Dragon Ball Z
|
...then you might like
Tengen Toppa Gurren Lagann
|
Both display over the top action and insane amount of power (level)
If you liked
Kenpuu Denki Berserk
|
...then you might like
Gungrave
|
Both have friendship and betrayal as their main themes.