I have been told that in tropical places there is an abundance of food, so over there is ideal, but there's also mosquitos and disease and it's not an environment i'm familiar with.

Probably somewhere really remote but near to human settlement - easier to get casual work, hopefully?? Because less available workforce?

The sensible answer is probably "somewhere with good social safety net' like The Neterpherlands or Sweden.

And if we think "wilderness survival" situation, the only answer for me would be somewhere temperate or sub arctic because those are the environments i'm familiar with; europe woukd be nice, but is there anywhere truly remote there?