Tocumwal is on top of my list.
The Aero Club building is always open. They have regular social events.
Murray Border Flying Club Tocumwal : Home
New museum with a great cafe.
https://www.tocumwalaviationmuseum.com.au/
The local council even seems proud of it
https://www.berriganshire.nsw.gov.au...ions/airfields
Lots of aviation residents on the airport now, as an airpark.