I never used Hetzner but based on my research, Hetzner says that they only have 3 data centers: - Nuremberg, Germany - Falkenstein/Vogtland, Germany - Helsin

I never used Hetzner but based on my research, Hetzner says that they only have 3 data centers: - Nuremberg, Germany - Falkenstein/Vogtland, Germany - Helsinki, Finland so you could place 3 instances, one in each and would have to use public IP to communicate between them. But, Hetzner also offers Cloud Network, which is essentially a LAN that you should prefer for communicating. Anyway, whatever works for you, using Ansible is easier, because doesn't require any prior setup, but you pay that back with worse experience keeping things running and slower speed.