Bayern Munich is about to lose a player in this team. Joshua Kimmich is a player who is under contract with Bayern Munich but this player is linked to Barcelona to join this team in the next days.
On the other hand, Manchester United is seeking a midfielder and Manchester United can be another possible destination for this player.
It seems Bayer Munich should increase the offer to keep Joshua Kimmich or they will lose their player.
It is very doubtful if Joshua Kimmich will go to Barcelona because Barcelona has no enough money to pay his transfer fees and salary. Unless Barcelona can sell some of their players and get some money, Barcelona probably won't sign new players in January transfer window. They still have a financial problem, it is a big reason to stop buying any player.
It is possible if Joshua Kimmich considers to move to EPL teams but I am not sure he wants to join Man United. Man United is a very unstable team, Joshua Kimmich will risk his career if he decides to join Man United. I think he will prefer to join Man City, Liverpool, or Arsenal that perform better than Man United in every season.