Look to local event calendars, community organizations, and social media for listings. Neighborhood Facebook groups, city tourism sites, and local newspapers often publicize pop-ups, seasonal markets, and artisan fairs. Search engines with your city name plus terms like "pop-up" or "community market" will often surface current events.
Places to check:
Also ask makers you follow—many will post upcoming pop-ups and collaborations. Subscribing to a few favorite organizers’ newsletters ensures you don’t miss regular market dates.