In general, the poorer the country, the more women value men as providers. So there's the short answer to your question.
But there are other factors. You mentioned conversational Spanish. You really need to be at B2 level to live in any Spanish speaking country. Unless you speak Portuguese, or plan to learn it, Brazil is out. And then you need a way to make a living, unless you are independently wealthy and retired. These factors are more important than control over women because of legal and economic situation.
Even in Britain and USA, welfare and divorce rape systems don't guarantee wealth to the woman. One idea that will work anywhere is to marry and have children quickly, then divorce as soon as last child is born, while your income and accumulated assets are still low, so that woman gets minimal alimony and community property and child support. Then move back in with her and keep most income hidden so that child support doesn't increase. Woman will be pissed as hell, but if she's feeling very vulnerable with a newborn baby and several other young children to support and no relatives to help, should be possible to convince her to take you back.