[davuinci]

The only thing that (hopefully) is stored in the cloud with respect to password managers is the encrypted vault containing your passwords. Securing your vault with a strong master password in addition to a U2F like YubiKey seems to me a pretty safe way to store your important data.

Additionally, using an open-source password manager that you can audit alleviates any further paranoid concerns you may have. If you also worry about the cloud provider suffering a severe outage then you can always keep offline backups. Assuming that you have the expertise and time you can implement a solution yourself but it always depends on your threat model and your level of paranoia.