These are a couple of my old lists that are lacking in suggestions. I hope you can add on to some of them. Also, add your favorite lists that need more suggestions.
  1. •
    Songs About Cats: SONGS ABOUT CATS
    A list of various songs that reference cats.
  2. •
    My Most Intimate Inanimate Relationships MY MOST INTIMATE INANIMATE RELATIONSHIPS
    What is your favorite nonhuman love?
  3. •
    Horror Movies and Irrational Fears HORROR MOVIES AND IRRATIONAL FEARS
    Was there a Horror movie that really terrified you?
  4. •
    Driving and Movies DRIVING AND MOVIES
    What movies remind you of driving?
  5. •
    Best Senior Superlatives: Best Senior Superlatives
    I'm really curious to know people's favorite senior best of categories :)
    Suggested by   @shreyasaurus