With some rumors floating around that the Ducks are shopping Vatrano (no idea how valid those are), if he's moved I could see targetting Robertson to see if he can have a similar breakout as a pesky/energetic offensive winger. I doubt the latter is going to be a pure shooter on the same level but I do think he can score given the right role.
I'd offer something around Sasha Pastujov + mid pick. Pastujov has similar or possibly greater offensive upside, but will need more time in the AHL. He had a very slow start adjusting to the pro game as a rookie but really came on as the year wore on.