Objective: Secure & private password management, prevent anyone from stealing your passwords.
Option 1: Store Keepass PW file in personal cloud service like OneDrive/GoogleDrive/etc , download file, use KeepassXC to Open
Option 2: Use ProtonPass or similar solution like Bitwarden
Option 3: Host a solution like Vaultwarden
Which would do you choose? Are there more options ? Assume strong masterpassword and strong technical skills
Vaultwarden behind mutual tls and reverse proxy and https://github.com/oguzhane/bitwarden-mobile until https://github.com/bitwarden/mobile/pull/2629 is merged
But honestly all services you mentioned are worthy.
Anything that fits your needs imao