I don't know, I think it's a massive feck up not having signed Godìn personally but Alderweireld and Koulibaly are both better than Maguire IMO. Bonucci too. Plus there's others with potential around. Unfortunately I don't have a hotline to all the agents around the world so I can't say who's interested surprisingly enough. But yeah, I wouldn't even put Maguire top 20 in the world so I'm sure one of the guys above him could be open to a move in the right circumstances.
Most of your suggestions are complete non starters for us:
I’m sure I read Godin signed a 3 year deal with Inter? He’s 33 - that’s not the sort of offer we can either compete with or would want to offer in the first place.
Koulibaly has been priced out of a move as he fee would likely be what, £120m? Coming from the Italian league is a risk.
Bonucci is not leaving Italy.
Alderweireld - you can make a case for. However, I would suggest we are not that interested having had our fingers burned with expensive older players in the recent past. I wouldn’t be surprised if he’s asking for insane wages due to his release clause. As we have seen with Sanchez, wages for one player can have big ramifications across the squad.