that's actually one of the shots I like to throw. It just takes a lot of spin, due to how many forehands I've thrown, I throw with too much spin on tommy's now. They don't turn over, usually something like a predator I can get quite a ways on just a flick of the wrist completely vertical. The best imo is a flat Z Flick for this shot. With the super flat flicks you can actually release it at any angle and it will hold that angle in the roll once it hits the ground.
My other is forehand upshots, I have only seen one other person that predominantly forehand upshots. I've passed on a few tricks to people that play with me a lot though. Forehand anhyzer upshots with a putter are my specialty.