Someone mentioned Libro.fm a few posts back . . . .
I went to their website, because I was not very familiar with them (I hadn't even set a bookmark--that's inexcusable. ha).
Anyway, on their homepage is their latest membership special. "Get your first month for $0.99, and save 30% on all additional audiobooks."
It just occurred to me that 'monkey might have this on the O.P. If so, I apologize for the repeat. Of course, he may have the information buried under a dozen layers of links, where no one can find it, and even the search engine can't find it. But I don't. ha
https://libro.fm/.