What’s a fic so good that you haven’t read it since you finished it?

Have you ever read a fic, that exceeded your expectations and beyond, lives in your head rent free and gives you goosebumps when you think about it, BUT you just haven’t read it since? I’m looking to expand my horizons a bit in other fandoms so I’m looking for recs. I’m mainly into Naruto, BTS, My Hero Academia, Fairy Tail, and Marvel, but I’d love to hear about other fics from fandoms I haven’t visited!