Yes, Richard Perkins knows and has done a lot of good stuff over years in this space, at his permaculture mixed farm in Sweden. I mentioned him and a few other successful people in the regen ag space, like Gabe Brown and Geoff Lawton, with brief descriptions, in the recent thread about a long-running no-till no-herbicide farm here:

https://news.ycombinator.com/item?id=24827234

Edit: Also, Aanandaa Farms, started and run by a couple of ex-city-job professionals, the Guptas, in the Morni hills near Chandigarh, Punjab, is another good example of success, this one in India, although there are many others in India as well. They too have good instructive videos about starting and runnning a small-scale permaculture farm on YouTube. I believe they are starting a PDC (Permaculture Design Certificate) course in the near future too, which may be a combination of online, and learning time on their farm.