Not OP but can confirm the exact same experience when microdosing psilocybin. I get them from friends who grow them. Spores are not illegal, they can be bought online and sent through the mail.

I think of all the illicit activities one can discuss with friends/neighbors/coworkers, magic mushrooms is the least concerning and most likely to result in a positive connection. At least here on the west coast anyways, lots of people have access to mushrooms and consume them occasionally. You just have to develop trusting relationships with people around you, and that's generally regarded as a good thing anyways.

It's not too difficult to ask some people if they want to go camping, and while out in the woods bring up a curiosity about magic mushrooms. Anyone who goes camping with you is very likely to be open to the idea if not pull a bag of shrooms out of their backpack on the spot.

Most people get LSD (and just about any other hallucinogens/empathogens) from the dark web.

I micro dose with psilocybin, and order on zamnesia in amsterdam since i'm in europe.