Here's one that goes AU from S4E01 where Dean turned into a demon before the rescue in order to save Sam and the world from the original fate. Great one! Caring and cute yet somehow badass! Dean. The boys are like soulmate brothers and very close in it but no wincest nor destiel. https://www.fanfiction.net/s/7758453/1/The-Burden-of-Being-Me-and-You