I recently found this website:

https://coinatmradar.com/

Apparently there are more than 3400 ATMs across the globe and it's growing at an exponential rate:

https://coinatmradar.com/charts/#growth

On this website you can easily find an ATM near you, I had an idea like this myself for a website but it seems someone was faster than me. There is ad space there, I would consider it if I wanted to promote something, the website it's pretty cool, good design, excellent ranking in google, SEO wise it's a good deal.