The built-in browser password manager is the only one that ever made sense for me. You want the machine to verify the domain for you so you don't enter your credentials into some other site (no copying and pasting) and all third-party scripts are always clunky.
I use Firefox with Lockwise[1] for Android and pass[2] as overflow for more involved secrets. This is a solo solution though that doesn't solve sharing these secrets with others.