I would love any suggestions on where to find a great speed control and which to choose!

I have a 301 Singer sewing machine in good working order. However, it is always tricky to get the speed I want because the foot control is so sensitive. I would love to change the foot pedal to something that allows me more control over my machine speed. I wanta new controller not another vintage one. I'm comfortable with rewiring and will be able to discern what is compatible with my motor.

Thank yoou so much!