Anyway, I personally don't believe Zidane will become Manchester United head coach to replace Erik ten Hag. Because after all, the team which has a lot of money and also comes from the same country of origin as Zidane himself in France, but Zidane rejected PSG offer. Therefore, it seems that Zidane is only willing to coach in the teams which he played when he was a player, such as Real Madrid and maybe also Juventus in the future . But maybe, if Manchester United succeeds in bringing in Zidane as coach, then Manchester United will have a good chance of recovering. At least to get a trophy in one of the big competitions like the Premier League, because to getting the Champions League trophy will of course take time.
I think we already heard the rumor about Zidane to be the candidate of Man United coach previously. Unfortunately, Zidane rejected the offer from Man United because they have some reasons. If Man United tries again to give him an offer, I guess it will be rejected again by Zidane. He is simply not interested with Man United, he may prefer to return to Real Madrid to replace Ancelotti than to replace Ten Hag in Man United. So, Man United just wastes their time if they want to negotiate with Zidane. They are better to look for other candidates if they are serious to sack Ten Hag before the season ends.
I think Joachim Löw, Hansi Flick, Antonio Conte, or Julen Lopetegui can be the candidates. But I'm not sure about how possible those coaches to manage Man United. I only assume their quality deservers to consider as a Man United coach.
Coaches without clubs:
https://www.transfermarkt.com/trainer/verfuegbaretrainer/statistikI think this time we should understand how the Manchester United fans are putting Ten Hag under pressure to even leave his job instead of getting fired from this team.
They are not in good form yet and Manchester United spent too much money on the players Ten Hag asked them to buy.
Since there is some free coach available, I think there is even a chance for Zidane to start working at Manchester United.