I think the way to find this is to logically go through teams:
Are they in a place where they'd get rid of someone, as they're tanking (Utah - Collins, Sexton),
saving money (Boston - Hauser), or a
positional reset where they need to change (e.g, Orlando looking for guard / 2/3s).
Basically - are they in a positional to potentially undervalue their guys as assets as they won't stay around.
Boston - $- (Jrue, Tingus, Hauser),
LAL - positional overlap - Reeves, (listing for completeness - not an option for us)
Cleveland - $ - (Dean Wade, Okoro, Sam Merill as FA),
Orlando $ and positions (Isaac, WCJ),
Pacers - $ in future - Walker
Minnesota $$ (IF they keep both Naz / Randle as FA, one of them might be free),
Washington - tank - (Smart)
Dallas (need guards) - PJ, Gafford, etc
Utah tank - Collins, Sexton
I think we need PF / SF minutes, with shooting needed as Fox/Harper / Castle / Wemby will organise creation, and there are FA options as well (Laravia as commonly mentioned), but I think the bolded guys fit the need and target team that you'd look to trade and acquire cheap.