A possibility would be catering to local minorities and their creators in various places around the world, but that sounds like a lot of work. And here in Australia for example you'd be situated against SBS/ABC which do a lot of ethnic and minority content.

I'd also be worried anything big with wide appeal would be snapped up by Netflix et al. Here in Australia Cosby, Family Matters, Fresh Prince etc were all very popular. But this was in a mainstream way, African-American issues and experiences were largely irrelevant to us as viewers.