Napoli are working on a contract extension for Osimhen. He has drawn the attention to himself quite much after his amazing performance in the previous season. But as his cost is going to be quite high for the other teams interested in signing him I don't know if any team would make an official offer. Napoli must be asking for at least 130 million euros.
His salary is nothing for a player like him now and this gives Napoli an advantage to convince him for an extension. I assume he would demand a couple of million euros rise in his salary and I would expect Napoli to accept that. As he has 2 years left there Napoli had better secure his future there.
The Osimhen Party and the Napoli Party have indeed been talking about this even since last week if I remember correctly. And it seems that Napoli will also offer a salary increase to Osimhen. Because Osimhen deserved it.
And actually the Napoli Party has put up a transfer fee of around 160 Million Euros for other clubs who want Osimhen. But of course, until now no one dared to make a formal offer at such a high price.