Hi!! For me personally, I don't currenly have any strictly topgyu bmjn fics but my characters do tend to switch just in general. I don't know off the top of my head any topgyu only accounts and I've been kinda ia 😭 but I have seen a couple from oomfs recently:
sweet like honey - mochywrites and when the stars defy gravity, do they still burn? - gyvzznn
I'll post this out to twt and see if anyone else also has recs they want to share 🤎