Zidane is ready to come back next season, that's what I remember from the news I read a few days ago. His name is also linked again with Real Madrid. This is still doubtful for me, because Ancelotti still has a contract with Madrid until 2024. Apart from Zidane, there are rumors that Mourinho is also become a target for Madrid. If Zidane returns to Madrid, it's not surprising, but if he going to Chelsea he will make new history because this will be the first time for him to manage EPL clubs. Chelsea maybe need a coach like him, but sometimes a coach is not fit with any clubs at all. However, this is really become interesting news to follow.
This is because Ancelotti seems likely become a national coach in Brazil, that's why it's high likely Zidane will back to Real Madrid again. Mourinho seems already happy in Roma, Roma slowly become better after Mourinho become a coach since 2021.
Nagelsmann aka ex Bayern Munich coach seems will join Chelsea because Chelsea already talk with him. I think Nagelsmann could be a good coach for Chelsea because he has a good history in Leipzig and Bayern Munich.