1. Russell Westbrook
Adding Russell Westbrook here is a hot take. However, he's the player who's most familiar with how Durant plays, given that the two have played nine seasons together with the Thunder. Now in the twilight years of their career, a reunion would be fitting.
Westbrook is an elite facilitator who can find open teammates easily. In transition, he's someone that's feared by defenders for his intensity. Adding him will make their offense slightly unpredictable, but it could help Durant and Devin Booker have easier buckets.
The veteran point guard has a player option in his two-year deal with the L.A. Clippers. If the Clippers fail this season, Westbrook might be on the move and the Suns could pursue him.