I trade alone, but have a network of traders I talk to. I'm not looking for just idea sharing, I want to find a place that will actually want to teach something complex, something worthwile, either for money or for future commissions or future part of the profits. I've been sharing ideas for the last 6 years, and that's good, but not enough!
If you've been trading for 6 years, and if you are profitable and spend as much time as the average trader in tweaking your systems and watching performance, then you are, IMO, probably asking for the impossible. Most firms would likely gain from your knowledge, not enhance it!