CurseForge Link
https://www.curseforge.com/minecraft/mc-mods/oauth

Mod description
OAuth is just like ReAuth but adds Microsoft Login support. ReAuth seems to be abandoned and hasn't been updated in a long time.

Why would you like the mod added?
It'd be nice to have a way to relogin to my account since I got my account after migrations were forced.

The author of ReAuth is planning to update to support Microsoft accounts: TechnicianLP/ReAuth#35 (comment)

I'd prefer keeping ReAuth if that update comes soon-ish :)