What are the best peer to peer Entrepreneurial organizations?

HI Team, I’m exploring joining a peer-to-peer advisory group and would really value some candid feedback. My business partner and I run a professional services firm. We’re faith-driven entrepreneurs, and we’re looking for a room where we can be challenged, sharpened, and surrounded by operators who have scaled to $10M+ and beyond. I’ve heard of groups like EO, C12, and others, but I’m curious about real-world experiences. Was it worth it for you? What did you get out of it? Anything you wish you knew before joining? Ultimately, I’m looking for connection points, lessons learned, and honest perspective from those who’ve been in the trenches. Appreciate any advice you’re willing to share.