Here's a list... some are ambitious, some may not be
Daniel Sturridge (free agent) - very unlikely as wages would be a stumbling block, but imagine we could get a spine of for example Hart/Rooney/Sturridge, there's some Premier League teams who would kill for that level of talent...
Japhet Tanganga (on loan from Tottenham Hotspur) - an unlikely option/pipe dream but with Spurs seemingly tying him down with a deal for the future it may not be entirely unlikely he could be loaned out for experience - if we can't keep Clarke then why not Tanganga and te Weirik at the back next season?
Timon Wellenreuther (permanent from Willem II) - saw this suggested in our transfer forum, might not be a bad option. We need a keeper so someone with a bit of Bundesliga and a lot of Eredivisie experience on a free would not be the worst option for a club like us.
Jordan Ibe (permanent from Bournemouth) - his plights with his situation at Bournemouth have made headlines recently and he has an obvious media connection with us. Obviously the link is there, he may not be a target for us but if he was to come I'd back Cocu to coach the best out of him at this level...
Kamil Jóźwiak (permanent from Lech Poznan) - a supposed January target who would've 'rised a Euro 2020' place by moving in the winter window. With this now not being the case we may be able to make a decent move for him for not a lot of money. Has a decent return in the Ekstraklasa and fits a young, profitable market for us.
Jon Flanagan (free agent) - seems to be without a club after his stint at Rangers comes to a close this summer - say Bogle ends up leaving for a fee soon, would he be the worst option on a free?
Bote Baku (permanent/loan from Mainz) - a bit left-field, but an impressive midfield option for Mainz in the Bundesliga recently. Could he be a bit of quality we need a Pride Park for hopefully a decent rate (even if on loan)?
Rob Dickie (permanent from Oxford United) - they may still come up yet but Dickie has been impressive all season for Oxford United, including against Man City in their EFL Cup run earlier in the season. Could he be a marquee signing for us and our defence leading into next season?
Saba Lobzhanidze (permanent from Ankaragucu) - currently plying his trade in the relegation zone of the Turkish top flight, previously impressing at Randers FC in Denmark. Could the Georgian international pick up his form at Pride Park for the cheap under Cocu?