This kind of information is tracked by Wikipedia.

Requirements for individuals.

Policy of the government.

They have these pages for every country in the world. Just search “visa policy of $COUNTRY” or “visa requirements for $COUNTRY citizens” and its always the first result.

“The cloud is just someone else’s computers.”

If that’s what you really think the cloud is, still, then you are a dinosaur who is not evolving with the times.