Try online forums. There are the cheapest of options but obviously not the safest or most reliable.
Can't have your cake and eat it too. Otherwise maybe consider flying to these areas and knocking on investors doors. It took me a year and a half for my first startup to get funding and a lot of networking. There is no magic or art in it... Startups are like a science more than arts... Which is why you simply have to keep trying and improving until you succeed with the results you look for.