[yumraj]

In addition to looking at US, I'll suggest looking at other countries which have the same economic/labor dynamics as Nigeria.

In other words, labor in US is very expensive but many good are relatively cheap, so its economy acts in a certain way. For example, many times replacing an appliance is a better option that repairing an appliance. However, in countries where labor is cheap but goods are expensive it is definitely much better to repair things than replace them. That is just one example.

So, I'll suggest that look at developing countries with larger population and then find what services exist there that are not yet there in Nigeria. I have a feeling that you will have a much better success.

Having said that, there may be value in looking at US by creating products/services that target the rich in Nigeria, if that is your intent.