The obvious position is 2nd GK as I doubt if we will buy Gollini who is on loan - Sam Johnstone out of contract at WBA, plays for England as does Nick Pope (Burnley who might be relegated) and unlikely but worth a try if he will force a move Dean Henderson who rarely plays at ManU but locked into a 5 year contract.
After that its more tricky to find quality HG at a decent price (unless PL club are skint and need to sell), so we might need to buy youngsters from Championship clubs such as Hull and E u21 winger Keane Lewis-Potter, Boro Djed Spence et al - need to registered as HG in uefa squads although might be u21's in PL.
Also need to see how we can get academy lads enough experience to be candidates over next year or two - current likely prospects include Harvey White, Troy Parrott and Kion Etete although obviously not a given they will succeed in getting to PL standard - and Andy Devine and Dane Scarlett longer term