Kicker reports that Paulinho is looking to depart Bayer Leverkusen this summer.
Having spent four years at BayArena, the Brazilian winger is looking to find more playing time elsewhere.
Leverkusen are understood to be willing to grant him his wish, but want to insert a buy-back clause in the deal in the event of a sale.
Sporting CP and Ajax have previously been linked with the 21-year-old, who was signed from Vasco da Gama for around €18 million in 2018.
Mykhaylo Mudryk (Shakhtar Donetsk) or Luis Sinisterra (Feyenoord) could come in to replace him.