With Lonzo out for a while and Coby balling out, I agree that he likely is no longer a trade chip. His offense can really come into play off the bench in the stretch run.
As for trade assets, IMO PWill is/should be top of the list if the FO wants to make a big move for a 4. His value should still be fairly high and his developmental timeline just doesn't match up with this squad anymore after a lost year. Don't know if AKME is sentimental about their own lotto picks, but PWill is their best trade piece and they shouldn't be off limits if they are looking to everything they can to build the best possible roster.