If it's youth with a view to a future further down the line....

Jonny Burn - Bristol Rovers- Centre - Back
They signed him from Middlesbrough in January 2017 and he went out on loan to York City, still a lot to learn , should be one for the future.

Dru Yearwood - Southend - Midfielder another youngster that's showing promise.

Otzumer wont be signing for Walsall and Paul WARNE rates him yet won't be signing him.
I too rate Nsiala, he's took the long way round to get to Shrewsbury.