This is a (non-comprehensive) list of guys who were not in the NBA last season, and are not on a roster yet as of August 2024
Montrezl Harrell
Frank Kaminsky
Nerlens Noel
Victor Oladipo
John Wall
Serge Ibaka
Bryn Forbes
Justise Winslow
Will Barton
Dewayne Dedmon
Kendrick Nunn
Stanley Johnson
Anthony Lamb
JaMychal Green
Rodney McGruder
Jarrett Culver
You can probably add Derrick Favors to this list as well. Played in the GLeague all last year but never got a call up. Hard to believe the 2010 class is almost completely done