I've found that getting free audiobook versions of bestsellers can be tricky but not impossible. One of my go-to methods is using apps like 'Libby' or 'Hoopla,' which connect to your local library card. These platforms offer a vast selection of bestsellers for free—just sign in, browse, and borrow. The only catch is you might need to wait if the book is popular.
Another great option is 'Audible's free trial,' which gives you one or two free audiobooks to keep forever, even if you cancel. For public domain classics, 'Librivox' is a fantastic resource with volunteer-narrated books. If you're into podcasts, some authors and publishers release serialized audiobooks for free on platforms like 'Spotify' or 'Google Podcasts.' Just remember, while free options exist, supporting authors by purchasing their work is always appreciated.