when I was trading ES, I stumbled upon a little chat room. It was public, anybody could chime in, but mostly it was about 5 traders, I was the only one trading ES all the others traded NQ, one guy was really good with moving averages and posted a lot of his charts.
It was very helpful for me to see the way others traded, and when times were slow we talked, mostly about expenses.
But it was just something you found by google, nothing official, no sponser, no fee
I think some gregarious guy just set it up with free generic stuff
back when we thought the internet was cool
so what I'm saying is, you could start one