Since I usually play occults, I am itching to have a fear of light.
I still want to let my Sim be feared without it being a werewolf. Like, Sims still don't get the memo when mine shows up, they are going to become prey, or Temperance acts so nonchalant and stupid, just still trying to attack my stuff- knowing my werewolf will simply continue to beat her up.
Fear of the kraken would be cool for Saluni.
Fear of Grimmy
Fear of not pleasing everyone.
Kids and pets can have unique fears as well- like fear of vacuums, the occult toys, that lama that keeps spitting on them or the chicken that just pecks at them.
Even the occults can have other fears. A vampire or werewolf may not want to risk feeding on people because there's no telling what germs got on them. The witch might rather buy ingredients rather than acquiring them in the bubbling cauldron- this apple was swimming next to a dead rat!
Fear of rodents, reptiles, or whatever might be cool for pets. Mommy, I found a snake! Can we keep him?