Mostly all below are paid sites which require subscription to check the password for email BUT you can simply enter email & check whether that email's password has been leaked or not , if yes than in which DB it has been leaked
https://snusbase.com
https://leakcheck.net
https://leaked.site
https://leakcorp.com/login
https://haveibeensold.app
https://leak.sx
https://vigilante.pw
https://scatteredsecrets.com
https://nuclearleaks.com
https://www.dehashed.com
https://hashes.org
https://ploit.net
https://ghostproject.fr
https://private-base.info
https://www.babatools.net
https://leakth.is
https://leak-lookup.com
https://hacked-emails.com
https://www.hotsheet.com
http://www.leakeddata.cc
https://intelx.io
https://leakpeek.com
Enjoy 👍