Small Forward - Kelly Oubre Jr.
At the small forward spot, there are a lot of names that pop out. Derrick Jones Jr, Otto Porter Jr, Duncan Robinson, and Kawhi Leonard are just a few of the better options. One of those players is a superstar, and the Spurs would be silly not to at least extend an offer to bring him back, but let’s be honest with ourselves-Kawhi Leonard has made it very clear he doesn’t want to be a Spur.
Personally, Duncan Robinson would be my ideal choice. He’s a spot-up shooter and one of the best in the league, but he’s a restricted free agent barely making a million dollars a year. The Heat will almost certainly make an effort to bring him back.
Otto Porter Jr makes an insane amount of money for the player he is, and I like to think the Spurs’ front office is smart and knows not to overpay for a role player that isn't worth the payday. Derrick Jones Jr. is another intriguing pick who showed massive growth with his three-point shot this year, but ultimately, I think Kelly Oubre is a better and more realistic choice.
He played very badly to start the season but got back into the swing of things a couple of months into the season. He's a decent scorer from the outside, a good scorer on the interior, and is a very good rebounder for his size. He lacks playmaking abilities, but as a role player, he would not have to be a perfectly well-rounded player for the team.
The Spurs shouldn’t pursue him too strongly, as Vassell and Johnson are deserving of equal minutes, have higher ceilings, and cost less. But if Oubre agreed to play Spurs basketball and embraced his role as a fourth or fifth option on a good team, I could envision it working out.