https://writersboon.com/ords/f?p=WB:QUESTION::::RP,180:P180_ID:613

The Select a Topic setup wasn't easy to understand, I had to select Publishing Resources then Book Cover Design then it revealed Stock Photos Sites, so I'm adding a link to where I thought it applied before I discovered the correct place!

Here's what I found today:

https://www.pinterest.co.uk/explore/free-stock/