A coach like Jose Mourinho should definitely look at leagues other than European ones because he can still improve teams as long as they're not European. I've also quite admired Jose Mourinho in the past when I saw the teams he coached improve, and he was truly renowned for his coaching style when managing one of those teams. But for now, I also think Jose Mourinho should explore other opportunities in leagues outside of Europe so that his coaching prowess can once again be clearly demonstrated at his age.
Mourinho was completely successful with Chelsea, Inter Milan and Real Madrid. And he won titles with each club. Porto won the Champions League with Mourinho. Chelsea won 3 Premier League titles. Mourinho was successful with each club.
Whatever, Mourinho is not successful at the moment. Manchester United is not improving as expected. He was not even successful with Roma. Fenerbahce is not able to win the Super League title. I think Mourinho will probably take charge of a Saudi club after leaving the Super League.