Osimhen should definitely consider a move, there is nothing wrong with that, but I think that it would make more sense if he just went up one step ahead of the ladder and not multiple. Like for example we know teams like City and Real already have great strikers, they do not need him, so where else could he go to?
I mean Inter would have been a good step up, not as good as Real, but still better than Napoli, but Inter does have a striker too. I think it would be quite sensible that he finds a club that's Inter levels of good, in any nation basically. A team that could be good at champions league, where he can score 5+ goals in champions league (well system is changing so maybe more) and he can show how good he is.
Then he can go to a team like PSG to take the striking position. That is a team that there presence is known in the champions league every season and after Mbappe left the club, they will need to have a replacement for him and Osimehn is not a bad choice to fill that position for them now. He is a good striker and with PSG, he can score more goals in the Ligue 1 that he would score in Serie A because of the level and intensity of each competitions.
I have actually heard rumor of him been linked to the transfer to PSG, but not official announcement have been made regarding that or any contact to his camp. He will make a good striker if he plays in PSG and I fell he will have more playing time and opportunity there than he will in other top clubs he’ll want to join for next season. Last season wasn’t that good for him, maybe he can adjust this coming one.