Here is the list of QBs with hand sizes under 9" since 1999:
— Marcus Mosher (@Marcus_Mosher) February 2, 2022
Kevin Davidson (8 1/4")
Connor Halliday (8 3/8")
Tyler Wilson (8 3/4")
Zac Thomas (8 3/4")
Jordan Lynch (8 7/8")
Dustin Vaughn (8 7/8")
Brandon Allen (8 7/8")
Jake Fromm (8 7/8")
Kyler Shurmer (8 7/8")