Stuck deciding whats best to write about : Vampires or Monsters/Ghosts ?

I don't know but i always loved mystery and violence (in comics of course!). I've started doing comics about the same story but i'm still sgtuck about the creatures inside the comics. I wanted to do a comic about vampires only and expand on it. But i also thought that i should start small and start with a ghost/Monsters comic. Like... Yoou know, like Gravity Falls or Stranger Things type of sht. Concept in a small town and crazy stuff happen.

So yeah, i need crazy people to help me what should i write. I don't want to combine the two or i would lose trach about what i'm doing. So... Yeah. help.