This poor dude for sure have some..... issues. But in reality when I draw black man I usually have in mind monkey... To be clear, this is not racist statement, simply facial structure is similar. Also this is not general rule, blacks have many variations, but for generic, simplified black is enough to draw monkey and make some adjustments here and there. https://pic8.co/sh/6RMSFd.jpg see? couple lines from generic monkey to generic black