Best place to sell used gear in Australia?

Hi all,

Hope this thread will be seen by some fellow Aussie photographers ... but the whole section of the forum has not seen any movement since 2015 apparently so maybe I'm in the wrong place ...

Anyway, I was wondering if anyone had recommendations for the best place to sell some used gear. Are there any good websites, forums, facebook groups, etc. that are used by photographers, where one would have a better chance of running into serious buyers (and serious sellers for that matter)? Basically anything better than just putting it on Gumtree, which I'm really trying to avoid?

I'm somewhat new to Australia, so not so familiar with things like this yet. Any suggestion is greatly appreciated, thanks in advance!