You should probably think a little more critically about password managers. You don't reuse passwords at all. That is expressly the point of password managers.

You should probably think a little more critically about password managers. You don't reuse passwords at all. That is expressly the point of password managers. You generate a new password that is completely random and quite long for each independent website. If one of the sites is breached, no matter. Damage is contained to that site. The only password of yours that is leaked for that site. The only place that password can be used is - you guessed it - that site.