I'm not sure how obvious it is, but I love music a lot and have been a subscriber to Spotify for a few years. I mainly use it for music but also the occasional podcast, and I've been looking into what audiobooks are available on Spotify. Unfortunately, this post is aimed at people who are subscribed, because if you have to shuffle the album, you can't listen in order and I'm not sure how it works with podcasts. They don't have a specific audiobook format so they vary between traditional music album formats or podcasts. But these are the ones I'm thinking about listening to.