Have been looking into the various ways to give remote access to HA.
Though their is lot’s of info on the various options, I did not find a global advise or coparison with the context of HA.
First, tailscale and zerotier is VPN solutions.
Secondly, HA is just a service running behind the VPN service, so it would not have any specific relation to the services compared to any other service running behind the VPN service.