Bitwarden. They're open-source, support was always responsive, and they share their security assessments[0][1] for perusal.

Before Bitwarden, I was using KeepassX for years. Over time, the database syncing was becoming an annoyance for me and I was looking for a hosted solution that I could also recommend to non-technical friends and family.

[0] https://bitwarden.com/blog/post/third-party-security-audit/

[1] https://bitwarden.com/blog/post/bitwarden-network-security-a...