Occasional smaller meetups of a few community members are arranged in our Telegram group @swissmk as needed (“gotta test these switches the other guy in the chat talked about”, etc.), and announced on short notice in the Swiss Mech(anical Keyboard) Bulletin Telegram Channel @swissmkbulletin (as mentioned above).
We're spread over many different community sites and chats:
See Frequently Asked Questions. They answer questions like “Where to buy a Mechanical Keyboard in Switzerland?” or “Where to buy Swiss Layout Key Caps for Mechanical Keyboards?”
There's usually also a Mechanical Keyboard Meetup at every Chaos Communication Congress which takes place from 27th to 30th of December every year and sometimes also at the quadrennial hacker camps in Germany and the Netherlands. The according meetups are documented in the wiki of each particular Chaos Communication Congress: