Adding featured image to multiple posts

Is there a way of having at least a standard “featured image” adding to the multiple posts, rather than “no image”.

Ideally, we could have a block of images that are rotated, so if I chose 9 images, as the list is created it will sequentially add the featured images in a loop. So if I added 18 posts and there were 9 set images, then each image would be used twice (if you understand what I mean).

I sometimes add 100 posts at a time and it is a bit of a nightmare going back through the posts to add the featured images, so that the “blog” page looks better with the featured images showing, rather than the grey’d out blank image.