SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

for example I am on ThirdPartyPassword less

Hey! You can change to the recipe fairly easily by initing a diff recipe on the backend or frontend.

i see, data wise. on the database, it's fine?

if I i have ThirdPartyPasswordless on the backend, and ThirdParty (social login only) on the FE. would it break?

you can disable email part of ThirdPartyPasswordless though on the frontend