Of the real options, there is only one and it is known to everyone - Real. This transfer could have taken place last summer and the previous summer, but PSG poured money into everything (as it turned out in vain) and Mbappe lost another two years in the Parisian swamp. Exotic options may include City. Since City still cannot persuade Haaland to extend his contract, there is a theoretical possibility that Real will lure him instead of Mbappe, but then it will be the most profitable and logical for Mbappe to move to City.
Oopsss. That would be a scenario I never expected but I think you are talking about a potentially strong possibility. I think no matter what Mbappe should leave France and go to England and if possible he should enter a competition with Haaland. As long as he stays in France, there is no chance of him winning the ballon d'or. I think he needs new challenges now instead of money.