Maybe the Philippines. Disclaimer: The Philippines is the only fourth world country I have experience with. But it's very cheap, at least to eat. I remember ordering like 20 dishes for a ridiculously cheap price, and it was tasty too. I'd bet it's easy to immigrate into too just because it's poor. I forget how well the natives speak English, but I would probably remember if it were an issue. And nobody was rude to us for speaking English that I remember.