"Faith" might be a good place for you to start because it's an interesting look into Dean and how he functions, what he believes in, and what keeps him going.

I don't usually pimp shows--I really kind of suck at it--but I'll give it a try. Dean may not be exactly what you like in a character, but he does have a certain sense of responsibility and the need to do right that might appeal to you. That's something you can see in "Faith."