You really can’t get all paid content for free. Actually most paid content you won’t find for free. It’s not that easy.
Sure if they’re a popular OF creator someone will likely be ripping their stuff but that dries up really quickly when you get to creators with like only a hundred patrons.
The more niche you get the harder it is to find new content for free (pirated or not). That’s why people pay for it, they like the content and there’s no other way to obtain it (and they want to support the creation of it obviously).