Missouri is a pretty red place, so hit a blue island (KC, Columbia, or STL) and hit up the big university. Haunt some of the less flashy bars for anyone that seems chill. If you’re lucky, or it’s Columbia, there’s already a bar for it. Arch and Column in Columbia has a pride flag flying out front. Ask those folks, as I’m sure anything here in Missouri is pretty discreet. As a straight white man, I’ve never heard of anything, but it’s probably the point.