Tough to find a good fit for Ayton. I think it would have to be a bad, young team or a desperate team to take a chance on him at that $. The two best fits I can see are the Piston (bad, young) and Hawks (desperate).
For the Hawks, I think the Capela/Collins package that was mentioned makes some sense.
For the Pistons, you're probably looking at something like Bagley, Wiseman, and Burks?
I'd take him here. Not sure I'd do this, but I'd think about it.
Ayton for Smart, Gallo, PP
I think that would balance the team more and we'd get younger in the main rotation.
Top 8 would be White, Brogdon, Brown, Tatum, Grant, Al, Rob, Ayton. I think that fits a bit better as a top 8.
Smart would be pretty solid in the Paul role for Phoenix so it makes sense on their end as well.