hosted postgres provider with secure network connection

Hi,

I would like to use a managed pg, more than the fly pg offers. There are a lot of providers out there, but the thing I would most like is a simple way of securing the connection between the db and fly app processes.

I see crunchybridge has a tailscale offering, but no simple way to integrate into the fly.io wireguard network.

Are there any other postgres providers which offer secure connections to fly?