High Ceiling -- Nikola Topic and Alexandre Sarr
High Floor -- Zaccharie Risacher and Matas Buzelis.
The Spurs are still at the point where they need to go high ceiling (this may be the last year they're at that point).
Topic looks like a potential difference-maker, a straw that stirs as we might put it. The naysayer argument has failed in the past with guys like Topic. "He won't be able to get to the basket like that against NBA defenders." They said that about Ginobili, Doncic, etc. The truth is, if you have that gift, that intuitive knack, it persists regardless of what level you play at. It just does. Topic is exactly the type of player the Spurs need.
Sarr also has a high ceiling and is very underrated on this board. Granted, he has some bust factor as does virtually any big not named Victor. But Sarr looks different than Wiseman or Ayton or most of the other bigs that weren't transformative. First, he's aggressive and engaged at all times -- most bigs are not. He's light on his feet, he bounces, his motor is a constant. He's a good, instinctive, energetic defender (at the very least). On offense, he looks like he might, might have some KG in him. That would be a home run. I'd take the chance if Topic is gone.
The high floor guys are also interesting. Risacher looks like a Jabari Smith/Brandon Miller type -- a tall outside shooter who can occasionally charge the basket. Problem is, like Smith and Miller, Risacher hasn't got the moves once he gets close to the hoop. He's moving in a straight line with no ability to amend on the fly. A good player but with limited upside.
Buzelis has his appeal too. Another Franz Wagner is what the good version of him looks like. The Spurs could definitely use a player like him in a couple of years. But right now they need someone that might have a higher upside.
The college guys (mostly offensive guards) are also interesting. Haven't really looked into them enough at this point. But with a 1-5 draft pick, you probably need to go with a bit more size.
These potential high-end picks all have a lot to show us in the next few moths. It will be interesting.