If forced to trade Ayton, I am still interested in the Pacers. They have both of the two things the Suns need most: a center to take back (Myles Turner), and a point guard to back up Chris Paul. I asked about Malcolm Brogdon, and someone explained that Brogdon is unreliable due to constant injuries. That's okay--it's not Brogdon I would want, it's Ricky Rubio. I would be happy to take back the player who I keep hearing led the Suns to the beginnings of success. I'd much rather back up Paul with Rubio than with Cameron Payne.
I also wouldn't mind taking back Jalen Smith. It was a short-sighted mistake to dump him in the first place. He should have been re-signed as an insurance policy just in case negotiations with Ayton fail. If not needed, he's a trade asset.
Finally, this trade would avoid giving Ayton to a conference rival or another contender.