Actually, it's too early for Victor Osimhen to sign for the Saudi League because he has brighter future in Europe and with his form now, he may win some notable trophies while playing in Europe but if he decides to move to the Saudi League and win trophy over there it won't create excitement like it could be in Europe. When Napoli won the scudetto, we all saw how Osimhen made the news because it has been many years since they last won it but through the effort and hard work of the Nigerian striker they won the title and it earn him many respect in Italy and in football generally so even now that he isn't in good term with the club but they still respects him a lot.
If he doesn't get a proper club that wants to sign him permanently, I'm not sure if Osimhen will have bright future. He is impossible to return to Napoli, he must move to a new team. But the problem is Napoli doesn't want to sell him at a cheap price. If Napoli wants to get huge money, selling to Saudi team is the best choice. Unfortunately, it is not the best decision for the career of Osimhen. He must keep playing in the top competitive league in Europe if he wants to improve their performance. Considering to move to EPL is a good choice if there is an interesting offer. I don't expect that he will return to Serie A.