There was 2 Augustiner Brau Kellers last time I went and probably still is -as the one near the Hauptbahnhof is revered as the Oldest in Munich -we were told.The Augustiner Keller was full of Blues when I was there a few years ago. Seating for 7000
The one everyone piled into IIRC on the 3-2,win trip is the other one near to Marienplatz on Neuhauser Strasse where all the Towns Iconic bits are (if it’s still there!)