Unfortunately, hydrogen peroxide doesn't kill NTM. Neither does vinegar unless you soak for at least 24 hours at full strength. And you're right, alcohol stinks.
Try to remember to only EXHALE through the Aerobika to minimize inhaling germs.
Wash your dismantled Aerobika with HOT soapy water and a soft brush, rinse and dry on a clean paper towel. This removes the immediate threat and keeps biofilm from forming. Once a week or about that, sterilize by boiling (yes it withstands boiling if it isn't touching the bottom of a metal pot - I use a round silicon hot pad in the bottom of my saucepan) OR in a baby bottle sterilizer. Some people use microwave steam sterilizer bags too.