New hardware idea - Zone Controller and Electrical Heat Switch
Just i read Tado best alternative, Drayton website and i found that they maked some new devices:
Electrical Heat Switch: https://www.draytoncontrols.co.uk/products/Smart-Heating/Wiser/wiser-electrical-heat-switch
Both of them also good from Tado! First is floor heating, second is additional heating, like towel dryer, infra panels, etc... additional it work a range extender(!!!) in the system.