Nowadays there is talk that Osimhen could be transferred to Chelsea. Napoli could partially fill Osimhen's void with Lukaku. I think such a swap between the two clubs would make sense. Both teams would get what they need in such a deal. Anyway, I don't think Napoli can keep Osimhen any longer. Napoli are a waste of time for Osimhen. He should play for better teams for his career. And Lukaku can have his last big team experience with Napoli. If he doesn't get good stats at Napoli, he will be forced to choose between a salary cut or a move to the Arab leagues.
This would be the perfect swap deal and both teams will be satisfied with the player they will get, Conte is so interested in reuniting with Lukaku and Chelsea needs the services of Osimhen so this swap deal be perfect for both teams.
Obviously Osimhen looks desperate to leave the club now but the price tag on him is making other teams look away so this swap deal is the best way Chelsea can get him that they will spend less and it is the best way he Osimhen can be free from Napoli and have a chance to join an European team else Saudi league will be the last option for him. He is still good enough to play some few more years in Europe. It will be a great addition for Enzo Maresca team and also the club entirely for having such talented player.