Many of these decisions are going to be driven by the UEFA squad rules below, I think I've got them correct...
List A; Up to 25 - 4 club trained, Up to 21 non club trained, Up to 17 foreign
List B; under 21s who have been at the club for 3 years. Realistically only Tanganga. Can't see White or Cirkin (especially) getting a look in.
List A
Club trained: Winks, Bale, Kane
FA trained: Hart, Doherty, Dele
Foreign: Lloris, Aurier, Dier, Toby, Sanchez, Davies, Reguilon, Hojbjerg, Ndombele, Sissoko, Gedson, Lo Celso, Lamela, Moura, Bergwijn, Son, Vinicius
That's 24 with all the foreign spaces at a maximum so no room for Foyth or Gazzaniga. Although it might be strange to only have 2 senior keepers. Maybe somebody like Austin gets promoted.
That is also 20 non club grown players so only one of Clarke or Sessegnon can be registered. Don't see the point in doing so considering the squad depth a head of them.
Don't see Aurier as being the type to be content at being a back up (which Tanganga can also cover). But there hasn't been much talk about him for several weeks.
Sell/loan; Rose, Foyth, Gazza, Sessegnon, Clarke, White, Cirken.
That leaves us with the 22 plus keepers as mentioned by Jose.
In the next 2 Windows I'd imagine Aurier, Sissoko, Gedson, Lamela and Toby will be the ones with question marks over their heads. Plus Dele if he's still here.