Corpse party... And School Days . . . Please don't kill me, i'm sorry... If you want, i recommend "Nichijou", "School Rumble", and "Azumanga Daioh", trust me you won't regret it!
Puella Magi Madoka Magica. It's a heartwarming tale of a group of lovable young magical girls I'm totally not lying to you or anything because I'm a deceitful creepy creature masquerading in an armor of cuteness
... What, no one mentioned Lucky Star? Acchi Kochi Pani Pony(?) Dash... I think? School Rumble...well, it's more of a RomCom than Moe. ..There's so many anime anime in the moe genre, well, there's so many in fact if you consider that reaches borderline "moe"
I was just luring OP into a trap of sadness XD if i was serious, Lucky Star Acchi Kochi K-on are probably my tops.
Anything made by Kyoto Animation. Everything they make has MOE set to a infinity + 1. They are called the king of moe. Any character you think can't be made moe. They will make it more moe than you knew possible. Just go to anidb and search. Darn since anidb is down here is wikipedia: https://en.wikipedia.org/wiki/Kyoto_Animation