A subreddit for those that use https://www.reddit.com/r/Bogleheads/
It's a mix of young people being told to stop chasing WallStreetBets, people with more money than god asking for financial advice from the internet, and the occasional valuable nugget. I will happily ride broad index funds off into retirement and beyond. If only the people running our 401k felt the same way
I much prefer the website forum vs. the reddit version. The website forum seems to have more knowledgeable users.