Do something like go joint meetup.com. If you job isn't something like brain surgeon or another essential item then it's the old adage: nobody ever wished they had spent more time at work on their death bed.
Not really a fan of that advice (although better than no action) - I believe it is difficult to avoid shallow connections with a shifting group of people.
I personally (A) choose to share accommodation (shared house), (B) live in a part of the city that has that community feel (not the "best" neighborhood). Now meaningful long-term connections just happen without trying (in fact it would take effort to avoid it).