 If you liked
Chio-chan no Tsuugakuro
|
 ...then you might like
Piyoko to Makai-chou no Himesama
|
If you like some daily-life comedy content, then these are the 2 manga you should definitely read.
They are both ridiculously funny, both involve 2 female protagonists, and the protagonists are all rather evil in nature (makes the plots even more interesting and unpredictable).
Too bad both these manga are simply too short. Or else these two could've reached the heights of Hinamatsuri/Back Street Girls.