Previously I've achieved similar using an RC Servo with a fabricated bracket.
The reason I didn't use a typical motorised valve is I wanted proportional control of the flow, not just on/off.
If this is a Radiator Valve, there are plenty of off the shelf solutions, replacing the whole valve. Some of them will talk to home automation systems.
I did it by measuring the torque required to turn the valve (using a spring balance on the end of a lever which operated the valve.
Then bought a servo which had about double that torque rating - just so it has some in the bag if needed & won't be over-stressed long term.
I fabricated a bracket for mine - but this could more easily be 3D Printed.
Then used an ESP32 (Arduino kind of thing) to control the servo.
Unfortunately, I have no links or guides for you to follow - you'll have to figure it out as you go.