Dunno. Prob the gay bars Freddie went to. that and the Arabella high rise building which USED TO have Musicland Studios where Queen recorded the mostly crappy album HOT SPACE.
U may want to do research on that. Whether any of it is accessible to the public, or whether it is now a boiler room or trash compactor
To the best of my knowledge, most of the buildings that housed the bars which had been frequented by Freddie in Munich have long been seized by investors. By and large, Munich is a pretty depressing place. You might want to re-think your trip.