Obafemi pretty much leap frogged the u23s Which is why he might of snuck under the radar a bit.
Klarer is a popular choice on this board, but as you said in your post, it’s difficult for centre backs to make that step up
Will Ferry(academy player of the year) looks the most likely. He’s hardly played in the u23s yet, but looks superb technically, physically he’s not going to have an issue like Hesketh & Sims have suffered either.
If he gets off to a decent start in the u23s then he may well be getting a chance in the FA Cup.