Thanks so much for reading! Glad it was helpful.
I actually go over how to find extremely specialized niche publications and how to get an editors attention in my course. I will offer some bits of advice:
-Don't think of the submitting or pitching game as a competition. It's an awful mindset to have while working as a writer.
-If you can't find any publications in your specialized niche, than your niche is too specialized and you're not thinking about the reader.