Well, the essay is a pretty breezy read, it’s only 10 pages. It’s called Ur-Fascism, here’s the full text. If you’re looking for something lighter (and lighter is an extremely relative term here), Cody Johnston is a comedian and video essayist that delves into right-wing extremism on his show Some More News. These two videos are older, but they do a great job putting Trump and conservatives in context using Eco’s definition of fascism.