Fulham and Napoli are both in for Neto, hopefully he accepts one of them, getting his humoungous wage off our wage bill without terminating and paying him off would be a big win. Mingueza has a low wage and has some good offers from La Liga (Celta, Girona...) and abroad and crucially has accepted to leave, so moving him on also shouldn't be a problem. As far as Depay goes, it's a matter of finding the right club, who would be willing to pay the 15-20M, and being good enough so Depay would be willing to join.
Toughest sells will be Umtiti, Pjanic, Puig and Braithwaite, since I suspect no one will actually want them, so push comes to shove, we might have to terminate their deals. Puig's low contract shouldn't be a problem (or even sending him on loan for the last year of his contract before he leaves on a free next summer), while Umtiti, Pjanic and Braithwaite could be big problems. I'm hoping Xavi doesn't give in and keep Pjanic around, cause he shouldn't play a single minute over the likes of FDJ, Nico or even Roberto. While Braithwaite and Umtiti are basically just mascots at this point anyway. Hopefully we manage to get rid of them at some point without fully paying them off.