Short answer: Brazil and Argentina lead — both have 20+ players including multiple $5 GOATs.
Brazil (21 players incl. Pele, R9), Argentina (multiple players incl. Messi, Maradona), France (24 incl. Zidane, Mbappé), England (22 incl. Beckham, Rooney), Spain (16 incl. Yamal, Pedri). Brazil has the deepest bench at every position.