Arguably, one of the most prominent things solo performers do is act as contemporary story-tellers. With that in mind, I recommend looking over this Jonah Sachs article on Fast Company. Though it is titled "How To Build Positive Marketing Stories That Work" it seems to have much to gleam for solo performance creators, particularly how our brains are hard-wired to pay attention to different story elements.
"People love stories about people, especially people who instantly stand out from the crowd. The lesson here is that to grab attention, we must bring our ideas on everything from climate change solutions to better ballpoint pens out of the abstractions of facts and claims and into the realm of expectation-breaking characters. Audiences will pay attention because they want to see, or hear, what these freaks will do next.