Regarding 501c7 status, we found a website that has a Q&A section on this: https://www.wagenmakerlaw.com/blog/social-club-q-section-501c7-tax-exempt-organizations .
From the Community Tool Box, you might also want to consult Chapter 43, Section 4, which has general information on starting a non-profit: : /en/table-of-contents/finances/managing-finances/nonprofit-status-tax-exemption/mai
Thank you for writing to us, and best wishes for success with your organization!