Ebooks and audiobooks are a great way to reduce the need for printed books, and they both very are convenient!
Your local library more than likely grants free access to ebook and audiobook apps like many of the following apps, so check with your library first!
Hoopla grants free access to audiobooks and ebooks thanks to participating libraries.
OverDrive provides access to free ebooks and audiobooks through local libraries and school systems.
Libby is OverDrive for 2022 and beyond. It's highly customizable to make reading on your device easier, and you can read across devices.
The name says it all - Open Library wants to make all books accessible to all people through their platform. No library card connection necessary for this one!
This platform provides free public domain audiobooks. You can even volunteer to read books for others to listen to as an audiobook!
Loyal Books believes that "books should be free," and provides free public domain audiobooks and ebooks.