He is having a great season in Türkiye. There will no doubt be a big transfer race for him in the summer. There are reports about Arsenal, Juventus, Manchester United and Paris Saint Germain. It is also known that Al Hilal want to sign him. But I think there are teams that lost the league title because they didn't sign him earlier. If Arsenal had signed him earlier, I think they could have followed Liverpool more closely in the Premier League. I think they made a big mistake by not signing Osimhen. However, they still have the chance to make up for this mistake.
There are many teams who want Osimhen's services but Napoli themselves are not willing to let him go permanently. The teams who want him are also quite potential so the next transfer window will be a great opportunity for Osimhen to determine his career steps. I am more interested in seeing Osimhen play in the Premier League and maybe some of the teams who want him will be serious about making a decision.
Arsenal really need a pure striker to support the team and maybe next season they can try to compete again for the title. If Arsenal are serious about signing him then their strength will be quite complete next season.