Smart TRV without a hub

Hi, are there any TRV’s that work well with HA that don’t require a hub? Shelly ones look good, but are too expensive. I’ve seen the Tado KE100, but I’m not sure if I’d need (yet another) hub.

I’ve currently got a Tado setup, but I’m sick of not being able to use an external sensor reliably unless I pay for the Tado add-on sensor (seen all the other threads about this and there is no nice solution).

Thanks.