Daniel Bryan. I would take him, put him in a large dragon suit with an american flag on it and call him American Dragon Dragon. He would be master of all dragon moves, the dragon screw, the dragon suplex and the dragon tail attack. His finisher would involve him breathing fire on people. He will be bigger Hogan ever was by fighting American's enemies with the strength only a true dragon possesses.
Think this with the work rate of Daniel Bryan and a Red, White and Blue cape:
He would feud with Axel Curtis who wants his dragon blood to cure Paul Heyman's baldness.