I have stable business and millionaire in RM cash holding. Me and wife love Australia and have travelled there in the past.

We have tourist visa up to 1 year and able to stay up to 3 months per visit. Subclass 600

We would love to stay in Australia for longer than 3 months at one time but not intending to be permanent residents nor citizens because our of business in Malaysia.

We can still rent a place or vehicle in Australia as a visitor, so there is no reason for us to apply for PR. Or is there anything in between PR and subclass 600 which could give us more benefit and value.

Any suggestion on the above?