you could always make a custom one: https://arandomsite.neocities.org/blog/custom-neocities-thumbnail/
I added the recently rediscovered *original* version of my article in the library! The version that has been there was edited for republishing by some Korean tech blog. I also added Yesterweb.org to the button collage because they added a link to the aforementioned article directly.
All I need is to be able to take a still overhead picture of the current state of the world as like a jpg or something.
https://arandomsite.neocities.org/blog/custom-neocities-thumbnail/