They have by far the best depth of all nations. Not sure if we have ever seen something like this, maybe Brazil had a comparable depth some decades ago.
If we assume that Benzema would normally be in their starting team, then this would be their 2nd/3rd team:
Maignan
L. Hernandez
Fofana
Saliba
Pavard
Camavinga
Kante
Coman
Nkunku
Diaby
Giroud
Areola
Mendy
Kimpembe
Konate
Kalulu
Pogba
Ndombele
Saint-Maximin
Fekir
Rutter
Kolo Muani
Digne, Disasi, Ndicka, Soumare, Kamara, Lemar, Thuram, Simakan, Badiashile, Koné, Guendouzi, Kalimuendo, Lacazette, Gouiri, Ekitiké, Bamba, Aouar, Mukiele, Lukeba, M. Dembele, Cherki, Ikoné, Martial, Cho, Gusto, Tolisso, Lenglet, Gourna-Douath ...
I think their 3rd best team would still be at least on par with any other team except Portugal/Brazil/England.