I've understood questions of the form "What are examples of X in existing fiction" to be off-topic for us.
- By definition, they're list questions, which work really poorly on SE
- They're low-quality questions -- anybody can ask a hundred of them; "examples of horses," "examples of shoes," which is bad for the site
- They're generally unhelpful to anybody besides OP
- They're also awfully near brainstorming/what-to-write questions, since their primary purpose is "I'm writing X and I want some inspiration."
Examples of questions of this form that have been closed:
- Are there widely recognized iconic story examples of "a stranger comes to town" and "a stranger in a strange land"?
- What books should I read before writing a non-humanoid point of view story?
- Can anyone provide any recent examples of characters which first appeared in a short story, eventually becoming major TV or Film properties?
However, I'm not finding a specific meta discussion of this type of question. It's also not in our On-Topic Summary.
We do have this:
The community has decided that questions about existing literary works, except in a writing-specific context, are off-topic. For more information, see this meta answer.
-- but I think newcomers do interpret "examples of X, so I can write X" as being "in a writing-specific context"; and the meta link is discussing literary analysis, which also is not helpful here.
I feel this makes votes-to-close confusing, and there's no good place to point new posters.
So! Are "What are examples of X in existing fiction" on- or off-topic for us?