You highlighted Jaden Springer. I've watched quite a bit of him and would like to offer my thoughts.
He's an average athlete. He isn't going to blow by or jump over guys too often, but he does have excellent body control. He finds space by slithering through cracks and bouncing off of defenders, and is a solid finisher even through contact. That said, I'm not sure this approach will work as well in the NBA against bigger, longer athletes. Even in college he struggled to create his shot at times and could cough up some ugly turnovers by getting himself swarmed in the paint.
Solid handle. Willing but sometimes mistake-prone passer. Willing defender. He shot well from three this season, but I'm wary of the very small sample (only 46 attempts). Still, the form looks good.
Ultimately, the shot is the most important thing. JJ Redick has had a very good NBA career, after all. So if that 43% three ball is even close to legit, then he's a useful player for a long time. But if he turns out to be a decent shooter instead of a great one, then I'm not sure the rest of the profile is enough to get him on the court at the NBA level.