Justin Patton, Harry Giles, Terrence Ferguson, Dwyane Bacon, and Caleb Swanigan.
Those are my five.
I think if Giles stays healthy, he could become a 20/10 guy. Big if, obviously. Either way, I think it's worth the gamble even if we end up looking like fools for picking an injury prone big man.
Ferguson and Bacon both would fit in this team and provide energy and defense. The Blazers should at least grab one of them.
Patton is a decent grab but nothing special. If we want a key back up center, he's it. And imo, he's better than TJ Leaf and possibly John Collins.
Swanigan is interesting due to his length and size. He could become a very good roleplayer like Jae Crowder is to the Celtics. If Patton is not available, we should pick him up.
I'm also a supporter of Jordan Bell. Don't know how good he'll be but he can prove serviceable in the NBA imo. Maybe we can trade cash for a second round pick.