I've only had 2 minutes to check a few teams but in their squads on Saturday

Swansea had 7 players though admittedly some were signed from other academies so weren't at Swansea from when they were 9 but still came through the academy.

Derby would have had 5 if Mason Bennett was available

Reading had 4

West Brom had 3

And even Fulham had 2

Bear in mind that these clubs have lost players like Dan James, Ollie Mcburnie, Harvey Barnes, Harvey Elliott, Ryan Sessengon, and West Brom lost a kid to Barcelona recently then it still completely puts us in the shade