Bitwarden is very good. And it is not getting hacked every year as Lastpass... (another free password manager).
I also saw that proton has launched proton pass as a password manager.
Seems to also be free, but only the app, I think is open source, and not the server. It also works less well than bitwarden, being new it can be expected.
I was a Bitwarden user for 2yrs and recently moved away to ProtonPass. Primary reason for me was native mobile apps and email alias feature. Although it doesn't have a web version yet (which is planned and would be coming in future), browser add-ons and native apps cover what I need and migration was mostly seamless as well