You should use a different password for every web site and service you access, every security adviser you can find is unanimous on that.
Once you get beyond a dozen or so sets of credentials, you cannot keep all of them in your head, so you need a password manager of some description.
The one that we have chosen, because it suits OUR needs, is Password Safe (https://pwsafe.org)
It allows us to:Store multiple credentials in an encrypted databaseSegment credentials by function to set access rightsShare credentials easily so that everyone who should can access themBackup our password databaseand runs locally, not in the cloud
You may have other needs, and other password managers may suit you better.
Troy Hunt (the guy behind haveibeenpwned.com) has a blog post here, explaining why even an imperfect password manager is a good thing.
PCMagazine have two lists, one of free password managers, and one of paid-for password managers.
Bottom line? It doesn’t really matter what password manager you use, so long as you use one.