Obviously the one you posted

Then I would say:

Non Non Biyori
GochiUsa
Hidamari Sketch
Nichijou
Lucky Star
Azumanga Daioh
New Game!
Yuru Yuri
Shinryaku! Ika Musume
Kiniro Mosaic
Yama no Susume
Kill Me Baby

I could probably keep going, but those are all really good.