Read today that there are bids up to 50m for this guy, almost choked on my coffee.
There is nothing more overrated in football, than the individuality of defenders. Certain defenders work for certain teams, yet wouldnt work for other teams.
Anything above 20-25m for a defender is a waste of money and hardly making a noticable difference. Look at ManCity, spending 40-50 on defenders per year, nothig improves at all. Its all about tactics and your teams workrates.
Sign a halfway good defender, from whom you think he'd do well for your team and who isnt too expensive. Someone of the quality of Alderweireld, Sakho, Mustafi or whatever, in case you get them for <25m, that sort of level, that's enough and they'll all do wonderfull if your philosophy enables a stable environment for proper defending. No need to go for Godin, Thiago Silva or whatever, thats not worth it.