The Children's Trust Book Club
I discovered them at a small city fair and we have been receiving books for over 2 years. Good selection of books. If your home is bilingual, check the bilingual household, you will get books in both languages! Also, books come with great activities to do with your little one.
I discovered this book club a little after giving birth to my second daughter. We receive a beautiful book every month free of charge. If you enjoy reading with your little one, you're going to love it! Note that it's for kids who live in Miami-Dade County and are 5 years old or younger.