Countries where it’s easiest to turn cash into crypto?

In my experience:

1.Turkey 2.Montenegro

In what other countries have you found it easiest to just show up and sell your cash for crypto?

Turkey, with it’s inflation issues is probably the easiest. There are crypto exchange shops on every corner in tourist towns.

In Montenegro there are a lot of Russians who are using crypto to take their money out of bear country and exchange it for Euro, so private currency exchange business is flourishing there. This is likely happening in all the ex Yugoslavian countries friendly to Russians.