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

SuperTokens.com

hi all, after a successful social registration/login, I want to retrieve the user's details like name, email etc, how can I achieve that? is there any reference for the same, thanks

Yea. You can get the access token that the social provider sent and query them for user info

https://supertokens.com/docs/thirdpartyemailpassword/post-login/getting-provider-access-token

(the above is for thirdpartyemailpassword recipe)