Hi, I'm interested in starting a club at my high school somewhat related to feminism and such, and was wondering if you would be able to suggest any way to go about that. I'm not for sure what exactly the club should encompass, other than discussions.
Every school is different and, therefore, it's hard to have one standard answer.
I can, however, talk to you about what I have seen work in the past. Some schools have student activities committees and each new group has to be approved through this group. So if that's the case in your school that should be your first stop. There might be an obvious faculty member who you like, and get along with. There might be another one who is less obvious, but likely to be equally enthusiastic.