Anyone got some slow burn fic recs? Timeline doesn't really matter, it could be one of the older ones but no Druggie!Cas pls, already had a fair share of those.

So:
-slow burn - getting "there" rather than being already together, I want to read about all those lingering looks, touching etc
-canon compliant (if the fic is one of the older ones it can stray ofc, I really like s4-5 ones, but yeah, anything will do as long as it's good) wanna have Sam&Dean as hunters and Cas as their Angel (Human!Cas is good too though)
-thinking/talking about feelings, escpecially Dean <3
-hurt/comfort or case like story
-maybe some doubt? ("does he really like me?") this is optional

Want to spend whole today+weekend on reading so pls send me something good and long ;)