Where I live so many people have Little Free Libraries set up. Check the LittleFreeLibrary.org site to see if there’s any near you. If you find a book in one that you don’t think you’ll read again, make sure to “throw it back” for someone else. Also, you might check out bookcrossing.com. Some members of that are willing to share books and I believe the site also has a listing of where people have set up bookcrossing release spots.