1.life inside a computer (like emoji movie but you are inside of it)
2.living under water (fish friends and weird stuff)
3. Going to space (but something happens you could go with aliens or anything its a very broad idea)
4.mutation (any animals or something you could make a mutation like creature and that could be the problem of your story.
5.being super small (microscopic)
6. being super huge (giant like)
7. nuclear radiation ( this ones iffy bc of fallout and many books so its not original)
8.A story where drawings come to life
9. end of world (not original)
10. zombies (this is terrible use for anything you would publicly publish bc of how popular zombies are)
11. super human powers (like flash or hulk where they were once normal
12. born or cursed with powers (superman or thor)
13. disease take over (a bad infection)
super sorry thats all i can come up with