Hello Niek and welcome to Permies!
In my
experience, good permaculturalists do, --- not tell. By that I mean we just get about our business as it were , are more interested in doing good for our families, our farms, and our planet and we are just about everywhere. You just need to know what to look for and be able to recognize a the secret handshakes. "That farm over there is planting on contour", "They are strip grazing with a leader/follower system", "They pollard and coppice" etc etc. So my advice to you is to find a degraded piece of land at a price you can afford in a location convenient for you and buy it and follow your favourite flavour of
permaculture and before long your neighbours near and far will recognize your secret handshakes and say to you "Hey are you into permaculture?"