Niche marketing: you’re writing fiction
What if you’re writing fiction? Let’s say you’ve just written a gothic novel, set in 1830s England. How could you target niche markets with your novel?
Your overall market is people who read fiction. A subset (niche) of fiction readers is historical fiction readers, and another niche which applies to your novel is readers of horror fiction.
How do you find those readers, and engage with them, to make them aware of your novel? One way would be to use goodreads, which has reader groups for many different kinds of niches.