Casemiro and Shaw.
Fernandes/Martinez/Varane/Rashford just a bracket below
Shaw is a weird one because when you watch him on form (which he always seems to be for England at tournaments) he is clearly a world class LB, he just hasn't produced the way for us that Evra or Irwin did.
Not sure there's an LB out there you'd rather have in a knockout game save maybe Theo or Davies, and Shaw is better defensively than either, so depending on who the other team's RW is you might have him first.
Positional relativity matters here, for me. Someone like Lisandro gets a bump for being a passing left-footed LCB while Rashford drops because there's so many great LWs now that it's the star position for right-footers along with the most attacking midfield role. You can win without a world class 9 or RW, but you probably do want a world class central midfielder (can be either foot of course, just not a ton of lefties) and a world class LW like Brazil have (2 really since Neymar is also great there) and of course France.
I'd go:
World class, genuine contender for an Earth XI against the aliens: Casemiro
World class (might make the 26 against the aliens): Lisandro, Varane, Shaw
2nd tier: Eriksen, Bruno
3rd tier: Rashford,
4th tier: Dalot, Antony
and as that shows, we really do need a 9, a 4th quality CM and a 3rd CB this summer.