I've been looking for a replacement for OneTab. The import/export functionality is broken (doesn't carry over the tab group titles) and although not everyone would like that, I'd prefer to have cross-device sync.

I've been considering https://github.com/sienori/Tab-Session-Manager, not sure if folks have tried that and would/would not recommend.

As for password manager, I'm happy with Bitwarden. I came across https://github.com/dani-garcia/vaultwarden recently, but I'm not currently self-hosting.