I have fought right hand involvement in my swing since I started playing golf. The association of a tennis forehand actually was a great help,the rotation,swing plane,also because I was used to imparting spin I have never had to fend of a slice either,and the arms tucking inside you on the way down similar to a double bend forehand to generate power so lots of similar feels to draw on.
However because of the aggressive nature of a forehand this has given me one of my biggest flaws choking the club handle,throwing away the lag and hitting behind the ball. So for me the cure was to think in terms of my backhand,being a one hander the turn,maintaining wrist angle right into impact using the core muscles down the right hand side of my body,led to me thinking of doing the same thing just the other way round in a golf swing,which means along with training my left hand side to pull,and workouts with bands to train that direction.
I constantly have to work on my right hand being softer than the left hand which I find you can grip fairly tight with your fingers,but the sudden choking with the right spells doom in my swing.