Sleeper picks are hard to define with so many different big boards and mock drafts out there. My sleepers (players not typically ranked/mocked in top 35) are....
Chris Livingston, highly ranked HS recruit who underwhelmed at Kentucky. Similar sized but slightly taller than JB. I also like that he has been involved with USA bball and averged 14ppg for the gold medal U16 team in 2019.
Julian Phillips, like Livingston Phillips was a highly ranked HS recruit who underwhelmed. He has playing in a crowded front court this past season at Tennesse. As an extremely athletic wing whose calling card is his defense he it a consistent 3pt shot away from being a highly valuable player. His 82% Ft shooting is a solid indicator that the shot will come.
Keyontae Johnson, really simple if medical and off court issues check out he is the perfect back up wing. Long, strong, athletic and can shoot the 3. Team that drafts him has to just refine him on D and they have a player who can contribute to winning right away.
Kobe Brown, he is an odd prospect who was recruited to college as a 6'5 225lb shooting guard and was listed as both a SG and SF over his career but he measured 6'6.5" with out shoes 252lbs with a 7' wingspan making him taller, heavier and longer than Grant. His perimeter skills are that of a much smaller player and there is a path for him to lose some weight and become a really special combination of strength and length on both ends of the court.