If the Timberwolves series was any indication, the Suns need all the size they can muster. And with it looking like Nurkic will stick around another year, Little is the only contract they have to upgrade their size. In comes the Euroleague MVP in Sasha Vezenkov. He can shoot the ball, he understands his limitations on the defensive end, and can just be a nuisance on the boards. The bar is really low, and Vezenkov can clear it.
Little is young enough that he can turn into a defensive wing-type but he's only here for salary purposes. The real prize is the 22nd overall pick in the draft. It allows the Kings to pick one of the young bigs at the end of the first round. They also do Sasha a solid as he never really found his footing last year.
In summary,
Little + '24 1st (22nd overall) for Vezenkov + 3 2nd rounders (45th overall, 25 and 26)