I have come across a website that allows authors to distribute their audiobook promotion codes to a wider audience than they might otherwise be able to manage.
The site is called FreeAudioBookCodes and I recommend you check it out. Not only is there a wide variety of genres from which to choose, but downloading codes is free and there is no registration required. Reviews are appreciated but not mandatory.
To be taken directly to my page, click HERE. Happy listening, and please don’t forget to support your favorite author with a kind word when you can!