I would guess Boston is interested, but I doubt it is 1 of the 3 teams because Boston really doesn't have the assets that would make sense and that would leave Boston as a real contender.
I'm sure the Sixers are 1 of the teams though and they still have Simmons as a centerpiece.
Given the perceived value and cost, I'd rather go after McCollum. I think he could potentially be had without giving up 1 of the big 2.
Something like Smart, Hernangomez, Langford, Nesmith, 22 and 24 1st's for McCollum
That is the type of trade I'd be looking at.