He'll make a good upgrade to Madrid's midfield but I don't think they'll convince PSG enough to sign him, not at this point, Vitinha is one of PSG's powerhouse so I don't think they'll allow one of their major Champions League rival to get him, PSG gave already lost a world class player in person of Kylian Mbappé to Real Madrid they can't afford giving them another quality player, can Camavinga do what Vitinha is doing if he joins PSG? The right answer is NO.
This is just speculation as far as am concern because their is no possibility of vitinha moving to real madrid considering the sour relationship that exist between psg and real madrid due to Kyler mbape moving to real madrid, but if Madrid press harder, the only thing they will be successfully in doing, is to get into the head of the player, but that will not be enough for psg to let him go because he still has few more years in his contract unlike Kyler mbape that was having one year left on his contract then.
So instead of real madrid to waste that valuable time on vitinha, they should use that opportunity to go for someone else that can replace Toni Kross in the heart of this real Madrid team, because his absence is the major cause of their struggling especially against a ball playing team.
I also think that Vitinha will never go to Real Madrid, there is too much animosity between the two clubs, but we must consider the fact that PSG has no intention of selling its prized players, they are not interested and do not need the money given how much they earned with the Champions League victory