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.