Looking for smart heating thermostats

Yes, I know the DECT thermostats from AVM but unfortunately they don't have a Fritzbox

The selection is unfortunately very limited and difficult so I am asking for advice here

What do you think about the Homatic IP thermometers? Yes, you still need a hub, but are they good? They supposedly constantly perform a hydraulic balancing. Does that help?

Since it is very difficult to find heating thermostats without a bridge, they have decided to accept a bridge as well. Which models can you recommend? The current favorites are Bosch or Homatic IP. Does anyone have experience or can recommend others? Tado is out because of the subscription.

Fritzbox change (as a bridge replacement) + AVM thermostats?