I highly doubt we're going to be spending much in the next couple windows, and the only one of the 4 you mentioned that seems realistic (fee + importance to their club) is McGinn, who isn't a bad shout btw.
Apart from that if you're sticking to HG options I think Isaac Hayden is underrated and could do a job as a PEH backup and potential Sissoko replacement. Not the flashiest player but tidy enough on the ball, good in defense, and a very hard worker.
Big lack of quality in <26 year old HG center mids right now though so don't know if moving Winks on is in our best interest.
If we look outside of HG then the options expand a bit. Some EPL players that could be decent fits at reasonable prices (particularly if relegated) are Sander Berge (Sheff Utd), Zambo Anguissa (Fulham), Bissouma (Brighton), and Douglas Luiz (Villa).
The best replacement for Winks is Ruben Neves. He can play as a defensive midfielder or in an advanced role, and his ball striking ability would be such a great asset against teams that sit back. Sell Winks and Dele and Neves essentially can replace what they both bring to the squad. With the Mourinho and Mendes connection, it's a very doable deal if we raise funds from sales.