As the retained lists for other clubs are being released and looking at the list of players who are potentially out of contract, there are a lot of good options. But we know that there will be certain players on frees that are more and less realistic for us. So looking at the pool of players we've got a decent chance of attracting or affording, I can imagine some of the below we've had a look at.
Centre Back
Sam Sherring, 23, Northampton
Alex Hartridge, 25, Exeter
Sam Hughes, 27, Burton
Sean Raggett, 30, Portsmouth
Dan Happe, 25, Orient
Terell Thomas, 28, Charlton
Warren O'Hara, 25, MK Dons
Jacob Bedeau, 24, Morcambe
Luke Offord, 24, Crewe
Zac Williams, 20, Crewe
Will Wright, 26, Crewe
Left Back
Ben Williams, 25, Cheltenham
Rio Adebisi, 23, Crewe
Right Back
Joe Raffety, 30, Portsmouth
Liam Bennett, 22, Cambridge
Tummise Sobiwale, 25, Shrewsbury
Lasse Sorensen, 24, Lincoln
Joel Senior, 24 Morcambe
Def / Centre Mid
Marcus McGuane, 25, Oxford
Shawn McWilliams, 24, Northampton
Harry Kite, 23, Cheltenham
Mark Helm, 22, Burton
Lee Evans, 29, Portsmouth
Joe Powell, 25, Burton
Elliot Watt, 24, Salford
George McEchran, 22, Swindon
Cameron McGeehan, 29, Colchester
Greg Docherty, 28, Hull
Will Vaulks, 30, Sheff Wed
Idris El Mizouni, 23, Ipswich
Right Wing
Jordan Gibson, 26, Carlisle
Luke Moyleux, 26, Doncaster
Left Wing
Will Ferry, 23, Cheltenham,
Theo Archibald, 26, Orient
Nick Tsaroulla, 25, Crawly
Ronan Curtis, 28, Wimbledon
Jack Nolan, 22, Accrington
Jordan Garrick, 25, Forest Green
Mickel Miller, 28, Plymouth
Attacking Mid
Daniel Mandroiu, 25, Lincoln
JJ McKiernan, 22, Morcambe
Noah Chilvers, 23, Colchester
Ben Woodburn, 24, Preston
Panache Camara, 27, Ipswich
Striker
Gasan Ahadme, 23, Ipswich
Jonson Clarke-Harris, 29, Peterborough
Shayne Lavery, 25, Blackpool
Ruel Sotiriou, 23, Orient
Daniel Udoh, 27, Shrewsbury
Will Evans, 26, Newport
Tyrees Campbell, 24, Stoke
It's worth baring in mind players under 24 would potentially require a tribunal / compensation fee. Those are generally not massive but still wouldn't be completely free.
Older players that could be worth a look
CB - Martin Kelly, 33, West Brom
CM - Tom Carroll, 31, Exeter
CF - Tom Bradshaw, 31, Millwall
CF -Chris Martin, 35, Bristol
CF - James Collins, 33, Derby
CF - Sam Vokes, 34, Wycombe
CF - Matt Smith, 34, Salford
Potential Loans
DM - Bosun Lawal, 20, Celtic
CM - Freddie Potts, 20, West Ham
CM - Marc Leonard, 22, Brighton
CM -Lewis Warrington, 21, Everton
AM - Ryan Trevitt, 21, Brentford
AM - Luke Harris, 19, Spurs
CF - Michael Mellon, 20, Burnley
CF - Kieron Bowie, 21, Fulham
CF - Shaq Forde, 21, Watford
CF - Joe Taylor, 21, Luton
CF - Dale Taylor, 20, Forest
CF - Kion Etete, 22, Cardiff
I'm sure there will be plenty of others from Prem sides youth teams, non league, SPL and maybe even further afield. Maybe even approaches for players I left off this list because I thought they were out of reach. There may even be some players still under contract we make offers for. But whatever happens it'll be interesting to see what happens as I imagine we'll probably bring in around 10 new faces.