Here's a reminder I have several books in the KindleUnlimited program. I'm a subscriber myself and, so far, finding it an excellent way to get books which cost way too much with the regular Kindle price. "Too much" in my opinion is more than $3.00 for a single title. Boxed sets (like my Witches of Galdorheim 3-book volume) can certainly cost more.
Here are my KindleUnlimited books. Click on them to go to the product page on Amazon.