Well, if you're into long, slightly dubious surveys about opinions on stuff, definitely do this one: https://genderandsexualityexperience.tumblr.com/post/163453377063/survey-into-gender-and-sexuality-experiences
(I'm kind of sceptical, but still interested in the results, with all their possible limitations.)
But that one about AO3 reading habits / fanfic preferences is fun https://stuck-in-ffxv-hell.tumblr.com/post/163964231580/ao3-fanfiction-reader-analysis