I’ve switched from 1P to Strongbox which is using a Keepass2-compatible database in the background. But Strongbox integrates into the Apple AutoFill API so it works (and mostly feels) like the native Apple Keychain thing. Only for Chrome or Firefox you’ll need a plugin and then it works similar to Bitwarden. But I don’t use these.
Bitwarden isn't rapid, but at the time it was, to my surprise, a better experience than 1P, at least on MacOS.