Has anyone here listened to the Dissident Science podcast hosted by David de Hilster? He popped up in my recent YouTube searching, and in an episode on Dark Matter a viewer named "sciencethinker" recommended a David Harriman video to him. Hilster didn't seem to know about Harriman, though both are very critical of modern theories in physics.
Here is the video on Dark Matter. (The exchange with "sciencethinker" begins at 35:20.)
Also, Hilster and his father are publishing a book about their Particle Model. The book's website has some info and additional links about it.