Out:
Hart, Bravo, Sagna, Zabaleta, Clichy, Kompany, Mangala, Toure, Fernando, Nasri, Navas, Nolito, Bony
Send on Loan:
Gunn, Adarabioyo (if he signs a new contract), Denayer, Angelino, A. Garcia, Iheanacho, Moreno
The remainder of the squad would be:
FIRST CHOICE NEW KEEPER
Caballero
FIRST CHOICE RIGHT-BACK
Maffeo
FIRST CHOICE LEFT-BACK
BACK UP LEFT-BACK
Stones
FIRST CHOICE LEFT SIDED CENTRE-BACK
Otamendi
Kolarov
Fernandinho
DEEP LYING CENTRE MIDFIELDER
Gundogan
Delph
Mooy
Silva
De Bruyne
Stirling
Roberts
Sane
BACK UP LEFT-WINGER
Aguero
Jesus
In terms of the Champions League squad, we have 7 "free" slots available so all of the required signings above can be foreign signings. It wouldn't be a bad idea to try to make one an association trained player though just to give us a bit of wiggle room, especially if we subsequently decide that Maffeo or Roberts aren't sufficient as back up options. We might not need/want to keep both Delph and Mooy but i would give both a full pre-season with us and potentially let one of them leave nearer the transfer deadline.
I'd be planning to keep Aguero and Otamendi, but if the likes of Real Madrid make us a good offer for either and adequate replacements were attainable, i'd be open to the idea of cashing in, especially with Otamendi. However, it feels like we've got enough on our plate to be dealing with so it would take big money to make either an attractive proposition.