Honestly it would be really great for Manchester United if they get rid of him as soon as possible. On loan or permanent deal they wouldn't have to pay his salary or most of it at least. Because he is really no use for Manchester United. He will stay as a rotation player and he won't be a credible player when ten Hag has no choice other than putting him in the lineup.
You're right. Manchester United must release Maguire as soon as possible to another club.
Maguire does not fit in the Manchester United squad because the position occupied by Maguire should be filled by a player who is typically ready to bleed in defense as Vidic and Ferdinand have shown in their era.
Maybe it will be a little difficult for Man United to get rid of Maguire because he still has a strong desire to get his position back. There are rumors that Tottenham and West Ham have an interest in Maguire. But, the signing can only occur if the person concerned is willing to leave Man United. So I think Man United needs to take action to make Maguire want to give up his dream with Man United and be realistic.
Erik ten Hag has also warned Harry Maguire that his status as Manchester United captain does not guarantee him starting. actually there are lots of rumors of Maguire moving but that doesn't guarantee he will move voluntarily because his contract still continues until 2025.
Harry Maguire has also been linked with a move to Chelsea but is focused on staying at Manchester United as the transfer deadline approaches.
There was even an extreme incident where Harry Maguire was terrorized by a bomb after Man United was slaughtered by Liverpool a few months ago.