He's currently 5th choice center back. If someone is willing to fork 30 million out for him, then Ten Hag will snap their hands off.
He could do a job for a mid to bottom PL side. His biggest problem is that he prefers to defend deep, in touching distance with the opposition center forward, so he can shepherd them, outjump them in close quarters.
Ten Hag want's his central defenders to play on the halfway line. So any balls over the top and Maguire is immediately exposed, because he doesn't have the pace to catch anyone. He was also exposed at playing out from the back. He's does break the lines or bring the ball out like Martinez and Varane can.
He's not a modern day center back, but there are still plenty of teams who still need a big guy to defend their penalty area. (Gareth Southgate)