Away from the whole online scene, I think something like a food truck with squat racks, bars, and plates instead of food going out to local festivals and getting as many people as possible trying basic lifts. Maybe call if a Lift Wagon, or something catchier, but basically show up at community events, festivals, state fairs, whatever you got, and get people who think that they could never do weightlifting to do a basic lifts, as taught by an onsite coach. That's Starting Strength's differentiator, the idea that everybody can (and should) be doing this kind of exercise. Online fitness is focused on elite performance and appearance for the most part. High school athletics focuses on the gifted. People are scared off from weightlifting, thinking it's not for them. Closest thing available to them are either over the top Crossfit boxes, or machine based gyms with no guidance by staff where they probably won't progress (but at least they won't get hurt). That's the (huge) gap Starting Strength can fill. Call it the Everything You Should Have Been Taught About Exercise (But They Were Afraid to Teach You), or A Million New Squatters (or Deadlifters, or Pressers). Something out in the world where people can go physically do that first rep.
Anyway, that's my radical idea.