Odin Bailey
Christy Grogan
Jid Okeke (already signed a pre-contract agreement with a German club)
Callum Connolly
Ben Hinchliffe
Max Metcalfe

Other than Okeke, I'd imagine Metcalfe would be the only one released.

Bailey and Connolly will surely be offered something and maybe Grogan too.

Ben's either retiring or staying (either due to a new deal being offered or him triggering an automatic extension clause).