More precisely, Xabi Alonso is currently being targeted by many of Europe's top teams because of Xabi Alonso's success in creating or building the Leverkusen team as it is today. I think it is quite worthy because Xabi Alonso has shown his qualities so it's only natural that many top teams want him.
I think the rumors for Bayern are still quite far away because so far Tauchel has been successful and has made Bayern Munich's performance quite strong, but we don't know at the end of the season what could happen if Tauchel has failed to meet the expectations or targets that have been set by Bayern management.
If Xabi can win either Bundesliga or Europa League, it's better for Manchester United to hire him and kick the bald guy. Manchester United already lose their legacy as one of toughest team in Premier League. They need to find a good coach who can able to develop the whole team, just like Xabi who wasn't sign many players, but he develop the existing players with a new strategy.
Manchester United, as a club with a rich history, is very natural because many fans hope that a change of coach will be made soon, considering that what ETH has done has not brought much change to a team as big as MU.
And we all know with Xabi Alonso's current quality, being able to bring Bayer Leverkusen to the lead in the Bundesliga standings without being defeated is an extraordinary achievement.
and in my opinion it would be very appropriate to coach MU, especially with the many quality players currently at MU, maybe it won't be difficult for Xabi to bring MU back to its glory days.
Even though it is not easy to return to the glory days, I am sure that with the qualities that Xabi has, he will be able to do it.