Hi,
The only place I know to suggest is the small town of Nimbin, New South Wales, Australia.
I think it's the only place in Australia like this. I don't have experience with the rest of the world really as I've gone overseas to only two countries and that's when I was a child.
Nimbin is well known for its counter-culture and marijuana, it being openly smoked there and the police generally turn a blind eye to it and only come in for big busts every so often. The town is also known for its famous Mardi Grass festival which is a anti marijuana prohibition festival.
I've been there twice. It's a very artsy town and you'll see how colourful it is when you arrive there. Buildings and walls are covered in art. The people there are very open minded and non judgmental which is great

I felt very comfortable there.
The land there is beautiful too, its tucked away in the mountains of Northern NSW. It's kinda sub-tropical there with lots of open grass plains from the extensive logging done back in the day.
But yeah, the land is fairly expensive but there are lots and lots of multiple occupancies if you're looking for a cheaper option. Its usually a share of around 100k AUD for 2 - 5 acres which you'll own and be able to build on, in a large plot of land(usually a couple hundred acres) with a small community whom live on their own share of land etc. The people are usually very eco-friendly and nature minded as is the town.
Have a look into it perhaps

my other half and I did, but decided it wasn't really for us live in but still love the place!!!