Content note: some not-particularly-explicit mentions of taboo fantasies like incest roleplay and consensual non-consent while half-asleep.
About six months ago, I mostly stopped jerking off to porn, and instead started jerking off to Quora threads.
For those unfamiliar, Quora is similar to Yahoo! Answers: a place where users can post questions and receive responses from other users. As with most such websites, it's a perpetual crapshoot: sometimes you'll get an answer from what appears to be a suitably credentialed expert on the topic you asked about, while other times you'll get answers from laypeople who have no qualifications beyond strong conviction.