 If you liked
Sakasama no Patema
|
 ...then you might like
Atri: My Dear Moments
|
Although the stories aren`t really that similar, i think you`ll like the relationship between the main characters, both anime have the same feeling of feelings involved between the characters, although in Atri they come a bit later on in the story with the romance.
But they`re quite similar, about 6/10 similaritty, but you get the same vibe from both of them.