 If you liked
Suzumiya Haruhi no Yuuutsu
|
 ...then you might like
Love Lab
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Although they don't have the same premise, both series involves a group of students who forms a club for various activities at school. (the activities contrasts differently though)
The main female protagonist from both series (Riko and Haruhi) has similiar personalities with their tomboyish attitudes. However, they do care about their classmates from heart.
Both series follows more of a slice of life theme although Suzumiya Haruhi no Yuuutsu has an additional taste of science fiction. Expect comedy and humorous dialogue interactions between characters that are absurd, out of place, and sometimes randomly out of nowhere.