One we have that is champing at the bit for a loan and might suit for a season in League One is Kieran Dowell (who seems to have lately hit a brick wall in the youth teams). You have had the solid midfielders who can build (Lundstram, Ledson), the reliable defender (Kenny) and the streaky forward (McAleny). Dowell is a very skilful attacking midfielder who can glide past the opposition and hit a lovely pass but who needs to learn how not to disappear in games and, as he said himself, to play in a man's game. (Think young Barkley type without the physique.) He was once thought to be ahead of Davies, who has sprinted past him into the first team.He had big boots to fill and had a wobbly debut but after that he was solid. Not the quickest for a full back (but not slow). He was good positionally, decent on the ball and got stuck in. His timing of the tackle was very good and he always tried to get forward. He definitely looked like he had a future in the professional game but unless he's improved a lot then I don't think he's ready for week in week out Premier League football yet. Seemed to have a very good attitude though and everybody liked him, certainly wish him well. He never let us down.
Conor Grant (out of contract at the end of the season) would, I imagine, be staying with Doncaster if they move up to your level and I would grab Liam Walsh (had a stellar loan spell at Yeovil) if he ever becomes available on loan for League One (but he is being hunted by Championship clubs).