Best way to monetize hidden porn niche?

I stumbled upon a niche of porn (don't ask me how) that is wide open with no competition and over 500k a month in related searches. I had some ideas for the site as far as monetization:

1. I thought about creating a membership site for other people who are into that "niche" who can meet up with each other to…
2. Obviously finding videos in this niche from other sites. Do people normally just embed another site's video, or do you rip them and host them on another platform?
3. There's…

Best way to monetize hidden porn niche?