I can't believe I didn't mention this.
So if anyone on my f'list has published a fantasy book, or just likes to read fantasy, and if you're on Facebook, I created a Facebook group for advertising fantasy books.
It's called a Little Taste of Fantasy -
https://www.facebook.com/groups/408782892806577/ It's kind of an experiment I wanted to try, in that instead of posting the usual book cover image and blurb, the author instead posts a snippet of their work. It can be a few sentences long to a few paragraphs long, just nothing over a page, and followed by a link to the advertised work. There's also a pinned post where you can comment and leave links to any author-related links you have (Facebook, Goodreads, websites, blogs, etc.)
Right now there's only five members and I'm the only one who's posted.