Ingram comes closest to that potential, IMO. Dude is somewhat held back by his genetics... he just doesn't seem to have the frame to hold weight/muscle. But he can possibly become KD like in his game.
He has managed to gain some muscle/weight over last season, but from what I read, the Lakers want him to add it slowly. Adding muscle/weight too quickly can create it's own problems. I don't think he's ever going to be "muscular" but if he can develop into even a poor mans KD...that'll be just fine.
One thing I like about Oladipo is he got some muscle...
and doesn't play with Westbrook anymore. lol