Other
Dean/Misha, Dean/Cas: Imitating Life (http://littlehollyleaf.livejournal.com/436642.html#cutid1) French Mistake season 6 au!
Dean/Benny: Lonely Too Long (http://archiveofourown.org/works/922708) I thought I'd saved this and was horrified to find I hadn't. It took me ages to find it again but it's so worth it. Romantic, gentle slow burn, domestic with hunting happily ever after. It's glorious.
Sam/Dean/Cas: Try This Trick and Spin It (http://cautionzombies.livejournal.com/14707.html?style=mine) this is basically like the angrier, pornier, angstier version of 'Apologies and other disasters' where there is less snuggling and more angry kissing and its awesome

Gen
And No One Sings Me Lullabies (http://dollarformyname.livejournal.com/44498.html?style=mine)
soulless sam and a six year old dean, omg
When Angels Fall (http://archiveofourown.org/works/846891?view_full_work=true)
BEST FIX IT FOR S8 OMFG.
Apologies and Other Disasters (http://archiveofourown.org/works/1033814)
the most canon almost-wincestiel I have ever read. Dean and Sam get Cas back, and the three of them spend a lot of time snuggling in the bunker. Kevin, Garth and Linda all move in too and its freaking adorable, the only thing missing is Charlie
You’re Not Just Whistlin’ Pixie (http://zannes.livejournal.com/24205.html)
Dean gets turned into a pixie and Sam has to deal with the consequences.
The Wellspring (http://scourgeofeurope.livejournal.com/38445.html) (Master List)
The best 'Sam&Dean as parents'/crossover with Dark Angel ever!
Everything a Ninja Knows, He Learned from Dean Winchester (http://jukeboxhound.livejournal.com/227814.html)
Operation: Geek Liberation. Dean frees Sam from his boring pastimes. Very silly.
Made in Taiwan/Welcome to Oregon (http://gretazreta.livejournal.com/5765.html)
Throughout Sam's time at Stanford he learns to decode the messages in the gifts that Dean sends.