Intch
Intch is a professional networking tool made for executives, experts, founders and investors to expand their networks in a goal-oriented way. Powered by 100k community of professionals help each other with requests or introduce people who can, and develop strong professional ties.
How to join
This community requires an application. Apply through their site to join — the process helps keep discussion quality high.
Features
Related communities

Seeking Alpha
20,000,000 membersSeeking Alpha is the world’s largest investing community. Powered by the wisdom and diversity of crowdsourcing - millions of passionate investors connect daily to discover and share new investing ideas, discuss the latest news, debate the merits of stocks, and make informed investment decisions. Available on mobile, tablet or desktop, 20 million people use Seeking Alpha every month.

r/wallstreetbets
11,100,000 members"Like 4chan found a bloomberg terminal illness." A subreddit that is breaking the internet right now. Originally discussing YOLO stock plays, now discussing class-action lawsuits.

Stocktwits
3,000,000 membersSee what’s happening now in the markets. See what actual investors and traders are saying in real time about the stocks, crypto, futures, and forex you care about for free.