How would fortune telling based on moles work anyway? I have about 400-500 of them, including almost a dozen on my face. To be fair, that includes smaller ones as well, but still...
It varies by country I think but when I looked into it a while ago, there are some pretty detailed sites in Japanese. I was going to include a page about them and what they meant, but in the end I didn't end up doing it.
Here are the two JP links I found. Given that they show parts of the body, might be slightly nsfw but whatever:
https://uranailady.com/ninsou/ninsou_2.html