The scuffed guys asked this question and I thought it would be a fun exercise.
So here is my thought:
Pulisic - Croatia. He'd definitely play, I don't know if he would be a locked down starter, but he'd be on the squad
Dest - Netherlands. Same as Puli...I believe he's also eligible to play for Suriname and of course he'd start there
Musah - England - At this moment he probably wouldn't be getting call ups, but he probably will be in a few years
Italy - same as England
Ghana - I think he'd play for Ghana at this point
Pepi - He'd probably be getting camp call ups. But he wouldn't be starting
Weah - Yes for Jamaica and Liberia, no for France
Acosta - I think he'd probably be in a similar role for Japan as he is for us.
John Brooks and Julian Green would not play for Germany
I don't remember who else is eligible to play for other countries...but mostly it seems like probably not is the answer for most of our guys.