Absent knowing anything else, and assuming most of the “usual” fantasy tropes are in place?

Either Savage Worlds, or Colville’s Draw Steel depending on how I feel and how my upcoming experimental play of the second one goes.

Colville suggests that starting in a tavern is a chance to show off the setting in a microcosm. Put folks there that represent various factions or attitudes prevalent in the setting. When I ran a Savage Pathfinder game and had my players start in a tavern, I had some incurious off-duty town guards, the dillettante son of the mayor. I couldn’t figure out a way to work in the diabolist church (I set my game in Cheliax), but I did have a choice of several “first jobs” for them to take.