http://archiveofourown.org/series/18228

Tony Stark. Roombas. Enough said.

http://archiveofourown.org/works/373529/chapters/608969

Thor hits things with a hammer. Kid!Loki happens and ends up winning everyone's hearts which makes everyone awkward.

http://archiveofourown.org/works/245571

I really want to steal Vili.

http://archiveofourown.org/series/9193

Loki falls in love with his brother and is banished - finds himself, finds his destiny, and tells Fate to go fuck itself.

http://archiveofourown.org/works/412112

Loki decides to talk to the Jontun rather than swipe the casket, and ends up in a crash course of cultural understandings. Will be epic.

http://archiveofourown.org/series/15618

A glorious soap opera of a lot of messed up people who are trying to be less awful at relationships. Queers of every variety.

http://archiveofourown.org/works/379058

Tony Stark is even more messed up and glorious as a woman.


So there are probably more awesome Avengers/Thor/Etc fics. Just wander around ao3 for a while if you've got a day or two to spare.