There are so many platform options when it comes to hosting your self-published books. After you have it on ebook and paperback, the next logical step would be to put it up on audiobook. One of the biggest leaders in audiobooks is ACX(Audiobook Creation Exchange). Once your narrator has completed the recording of the first 15 minutes of your book, they will send it to you for your review. I recently did a video showing you how to review your first 15 minutes on ACX.