 If you liked
Kyoukan Astro
|
 ...then you might like
Acchi Kocchi
|
Both being your typical 4koma, they make for pretty enjoyable reads. While they do rely on gimmicks a lot, they're good enough to get you that interested in the characters just a chapter into the volume.
Both contain unrequited love, in which the other person is just too clueless to realize, which makes for lots of funny situations.