There is a general author that writes great Dean centric stories where he gets hurt or injuried and Sam has to find a way to save him. I think she has a great grasp of him as a character. She sometimes does Samcentric stories as well but I would say most are more Dean. I will give you her fan fiction profile so you can read over the summaries and see if one catches our atttention. :)

http://www.fanfiction.net/u/1313916/Muffy_Morrigan