I recently was turned on to Hot Ones. Something to think about is how in 4 years, Hot Ones went from lesser known celebrities, athletes and musicians, to booking top tier guests on it like Paul Rudd, Gordon Ramsay, and Scarlett Johansson.
Gordon Ramsay mentions his daughters convincing him to go on the show. That means the secret to getting Gordon Ramsay on a smaller show is to convince the early adopters, namely his daughters. They then pressure him to do it.
Early adopters are always the audience. If you can’t convince who you want, convince someone a little less notable first. Eventually, the bigger fish will come around.