I heard there are some closed groups on social media for webcam models where they share experiences and opinions on many issues, including finance. Or you can visit Block Blast for answers.

Sure, such groups exist, but they are disguised to avoid being banned by social network administrators. I know that webcam models communicate about work issues on their forums, here is an example https://thecamsite.com/ . In general, there are a lot of such forums, in every country and in different languages.