Welcome to The community,grays on your package and Welcome to Luna ^.^
You can run a tavern wherever you want however you want. All you need to do is inherit or create/build a tavern, get a steady supply for it and go for it! You could potentially even hire people to run it with you. ^.^
However your heart desires!
I’m really interested in the tavern/cafe thing too! I plan to have somewhere a Soulmate Café. But gotta look for people to help with it
I don’t really see people doing to much with guilds in that aspect because I don’t think they would help much in all honesty.