You’ll find all legit online pokies sites in the link at the bottom of the original post (that best aussie casinos one). All of the brands there in that list are good in the sense that you’ll have no issues with safety / security.

I’d start with the ones showing AUD bonuses in that overview. This means that the brands have actually given some extra thought for Aussie players, so you won’t feel out of place + they might carry some 🇦🇺 top pokies.