Literally anybody apart from Maguire.
Even if an academy player comes on, they are just as likely to make a mistake as Maguire, but they will benefit from not having years of mistakes behind them.
The whole dynamic of the team shifted yesterday when he came on. The first goal kick Onana takes when Maguire is on the pitch he immediately goes long because everybody knows how much of a liability Maguire is.
If we really want to get rid of him, the only way to do it is to leave him out of the squad completely for every single game between now and January. If he keeps getting minutes here and there, he won't lose his England place and he will still feel like he has a future here.