They are some standout players at some positions and those playing at the highest level 1-2 years up...
Axel Kai, Diego Roccio as forwards
Perez, Macfarlane, Turner, Soto as midfielders
There are some very good u15 defenders with a lot of potential but there aren't a lot of 07s who could be dominant defenders right now at the u17 level. I don't hold this against them because of puberty. Next year will be a bit more telling... what 07s will be starting defenders on the u17s alongside the 06s in the MLS combo teams?
Goalkeepers are notorious late-bloomers and the position is so size-dependent so I don't really start thinking about who is elite until enough of them cross 6ft. (Yes, short keepers matter, yes they're good... but also yes, they're at a perceived disadvantage that they have to compensate with speed but there are also some tall and fast keepers who have both the skillsets... look at those just called in. Eyestone is like 6'4" or 6'5" and the rest are all over 6ft... as 06s.)