Negotiations will also take into account players’ contracts at clubs, as some enter the final few months of their current deals.
That may allow clubs to sign players for a reduced fee, while some will be trying to agree new deals rather than losing assets on a free transfer.
According to Transfermarkt, here are the most valuable Championship players who are in the final year of their contracts.
It should be noted that some clubs have options to extend player's contracts - often by a further year.
21. (4th) Oli McBurnie (Sheffield United)
Following their promotion to the Premier League in 2019, The Blades spent a reported £20million on McBurnie who is now nearing the end of his four-year deal. Photo: Morgan Harlow
22. (3rd) Chris Willock (QPR) - Club option to extend
While Willock is nearing the end of his three-year contract at QPR, the club holds an option of a further year. Photo: Andrew Redington
23. (2nd) Todd Cantwell (Norwich)
The 24-year-old is in the final year of a three-year contract and has only started nine of Norwich’s 22 league games this season. Photo: Stephen Pond
24. (1st) Ben Brereton Diaz (Blackburn)
Rovers took up a one-year option to extend the striker’s contract last summer and have been in talks over a new deal. The 23-year-old has been linked with a move away from Ewood Park though, with reported interest from Premier League clubs. Photo: Justin Setterfield