It’s not exactly an amazing list but looks like Marvin Martin, Jeremy Menez, Marcus Thuram, Maxence Lacroix and Jerome Roussillon are the best known former youth players.
Possibly a long term stylistical replacement for Virgil, although that is long down the road. Virgil still has a good few more years (though not a lot) and we first have to see how Konate does after a little while.
2 more experienced CB’s in Virgil and Matip and 2 more “younger” (not young, but having years ahead) in Gomez and Konate.
We probably think Konate for this price has a high ceiling with his physical attributes and technical capabilities. Get him physically ready to have longer periods being fit and let him blossom into a pretty complete CB.
I know I shouldn’t get too excited about this one, but I can’t help to be. Despite having never seen him play live, and thus having only few infos about him (essentially from this forum), I’ve a good feeling about this lad all round.