Lately I've seen people mention girls who gradually lose their clothes bit by bit, and it's honestly my favorite type of ENF despite it not being as common.
But I think there's a variation of it that I like even better than just losing articles one by one: clothes/costumes that gradually rip due to a combination of accidents and just being cheap/badly made.
A good example would be one of my all-time favorite ENF stories I've come across:
https://forum.chyoa.com/story/Cosplay-Con-Problems.8475Just the realism and the really gradual loss of her costume, starting with the tiny hole when she scratches her leg.