My regular go to is a category - Tequila - but not necessarily a specific brand. I typically select what to pour independent of what I’m smoking, but occasionally I will select something specific if it is warranted. Usually on the side of something not so hot if I know the cigar I’m smoking is on the lighter/more delicate side. Usually, though, it’s more of an “I like that, so I’m going to pour it; and…I like this, so I’m going to smoke it.”
That said, I’m not married to tequila every time. I’ll mix in a Negroni, gimlet, wine, scotch, rye, coffee, or whatever else may be suiting me at the moment. I just usually reach for the agave.