Depends on the town. If it was a gold/silver mining town, at or near peak production, the saloons would have imported the best booze in the world.
One thing is guaranteed is that these saloons would have had the best food in town.
Back in the day, many saloons offered a full spread of the finest all-you-can-eat "free lunch" for the cost of a $0.15 drink.
There's a YouTube channel called "Tasting History." In one episode, he talks about the dining fare in Old West Saloons, specifically in mining towns.
If you have 20 minutes to spare, it's entertaining. BTW, the pork and beans recipe he shares in that episode is really good.