Fiance Visa - K1/ K2/ K3/ K4

My sweetheart is Nigerian and I'm US citizen. We met online and have been texting and facetiming since May. On July 4th we decided to take the step to physically meet and he applied for a B1/B2 Visitor Visa. Since we were already quite fond of one another we discussed the K1 Fiance Visa but found that we do not qualify since we have not physically met. We are both marriage minded due to our religion and stages in life. He had his appt on Monday Sept 16th and was denied as 214b. Truthfully at this point we really don't care what country we live or get married in, we are pretty positive we want to marry but wisdom tells one to meet first. How do we go about following the rules to accomplish what we wish to do. Any help or wisdom would be greatly appreciated. I do prefer living in the US first as I need to get the family home purchased out from under my brother, if I leave before doing that he may very well just up and sell it and we or I would have no house secured here in the US. My grandpa built this home in 1949 so I have emotional ties to it. Please advise if you have any, thank you in advance and God Bless you all in your endeavor of happiness and love.