I live in Munich and have flown from whatever airfield has been available for more than 20 years (Neubiberg (closed), Eggenfelden and now Jesenwang).
Munich is by far the absolutely worst place on this planet for GA. No discussion, no competition. Ever increasing property prices, treehuggers, no political lobby, and most importantly, arrogant, selfishly and ignorant behaviour by Munich pilots under the protection of Franz-Josef Strauss until he went and it was all too late.
Your options (if you can call them that) have been listed nicely in the contributions above, so I'd start investigating which ones could suit you and stop searching for other alternatives, because there aren't any, no matter how hard you look.