Paris Saint-Germain will target Bayern Munich's Robert Lewandowski, Borussia Dortmund's Erling Haaland, or Everton's Richarlison should Kylian Mbappe make a move to Real Madrid this summer.
PSG and Real Madrid have yet to agree to a deal but discussions are ongoing.
Lewandowski's agent Pini Zahavi was in Paris on Monday and has offered his client to the club. Lewandowski would like a new challenge after seven years at Bayern.
On Friday, Leonardo spoke to Haaland's agent, Mino Raiola, who is in favor of a move from Dortmund for his client this summer.
Dortmund don't want to let Haaland go, but the 21-year-old has a €75 million release clause (potentially reaching €100m) which will come into effect next year and PSG believe that a bid of around €200 million could convince Dortmund to accept.
It might take a €100 million offer, but sources said that Richarlison is keen on a move to PSG.