#1 Kylian Mbappe (PSG)
It is fair to say that Kylian Mbappe is the hottest property in world football at the moment. At just 20, the Frenchman has a CV that reads like that of a thirty-something-year-old.
Second most expensive player ever, Golden Boy, World Cup, numerous domestic titles, FIFPro XI, Raymond Kopa award, global superstardom - Mbappe has seemingly done it all, and only a few can match what he has achieved in such a short time.
The one thing which is missing from Mbappe's amazing career is a winner's medal in the Champions League and given PSG's struggles on the continent, Paris might not be the place for him to do so.
Real Madrid's affinity for the Champions League trophy means that they are the most likely to offer Mbappe a shot at the trophy.
Though he might not come cheap (as PSG would be eager to make back every penny of the significant sum they spent on him and some more), if Real Madrid cough up the funds to sign him, they would be signing one of the most lethal forwards in the game.
His very young age also means that the club would get at least a decade of optimum performance from the World Cup winner and given that Zidane is an admirer of his compatriot, it would make perfect sense for the club to go after him.