Middlesbrough, Stoke and Derby are waiting to find out whether Bournemouth will let Jack Simpson out on loan.
The Cherries are expected to make a decision on whether to let the centre-back go later this week, and the three Championship clubs are all keen to take him.
Simpson, 23, has made only six appearances for the Cherries this season; three in the Premier League, two in EFL Cup and one in the FA Cup.
Boro are in the market for a centre-back and have also inquired about a loan return for Ben Gibson from Burnley - but Jonathan Woodgate's side were knocked back along with Fulham and Huddersfield.
The Clarets have been insistent on having a replacement through the door before letting Gibson go - and they have been linked again with a move for long-term target and Boro defender Dael Fry.
Stoke and Derby are also looking to bolster their defences as they look to avoid relegation and move up the Championship table during the second half of the campaign.
How to follow the January transfer window with Sky Sports
Sky Sports will bring you the very latest news from the January transfer market with the return of three shows.
Start your day with Good Morning Transfers at 9am as our team of reporters bring you the latest news and insight. Transfer Talk then follows at midday delivering analysis of the biggest stories. Then join us at 7pm for the definitive round-up of the day's news with The Transfer Show.
Meanwhile, the Transfer Talk podcast will also be back at the turn of the year with more expert analysis from here and across the continent.
And as well as tuning into Sky Sports News, don't miss a thing with our dedicated Transfer Centre blog.