I'll vouch for BitWarden. You can self-host or use their cloud offering. The server software and all of the clients are open source.
I've personally been using the cloud offering for several years now and feel quite satisfied with it. The free tier is generous, the premium tier is very affordable, and I can export my data to a self-hosted instance anytime I like.
Bitwarden for me. I've been using 1Password from around 2013 I think. I didn't buy into their subscription model so they've been gouging me with difficulties and cost in buying upgrades for a few years.
Apparently they have 500 members of staff these days, and millions and millions of investor dollars. Apart from maintaining browser extensions, for my own personal use I've not noticed a single interesting feature in recent years.
I moved to Bitwarden when the electron thing was announced, haven't paid any subscription yet and seem to have all the features I used before in 1Password. Bitwarden is very much recommended and I wouldn't recommend 1Password to anyone these days.
Bitwarden for private password managers and something keepass based for shared passwords in small teams works great. We use Keeweb with a keepass database on a shared Google drive. I put the master password for that in Bitwarden.
I guess for bigger enterprises you might like something with a bit more fine grained access control and auditing features. E.g. rotating the master password is a bit of a PITA. I actually did that this morning because somebody in our team left.
Most companies would want some kind of solution and most bigger companies would likely end up paying for something.
Keypass + Syncthing to get the database on all your devices. This combo has worked flawlessly for me for over 5 years now. I sync to all kinds of devices too including android phones.
