How do I start an fight club in school?

Let’s say, hypothetically, I wanted to start a real fight club at my school—like Fight Club fight club. No rules, no refs, just raw, unfiltered brawling. How would I go about it without getting caught or having it fall apart because people can’t keep their mouths shut?

I get that it’s risky, but that’s kind of the point. How do you find people who are actually down without attracting the wrong attention? And what’s the best way to keep it under wraps while making sure it doesn’t turn into total chaos?

Not looking for lectures, just real advice. Anyone ever pulled something like this off?