As an adult industry expert, I can say what I follow.
1. Most of the cam models are very active on social media channels like Instagram, Twitter, Snapchat etc. You can directly reach out to them by sending a message on those platform. I know its very difficult to get a reply from them. But this is one of the way which you can try because you won't get their mail id easily until they mention it on web.
2. Reach out to the cam model agents/ site owners and ask for a particular database. They'll definitely charge for it and that won't be a lesser amount I feel.
Hope this helps
