A guy who I'd be keen on with one of our first rounders, especially ours, is Brian Bowen. We know Ainge was interested in him last year, but Williams fell unexpectedly so it was irrelevant.
His NCAA ineligibility sucks, but he's playing in the Australian NBL and is doing much better than Terrance Ferguson (OKC) was at the same age. The NBL also isn't a bad league, with numerous Summer League guys playing over here.
He's a good scorer, good nose for the ball and has some good length. Could be useful off the bench