Most bourbon and rye are made with column stills as well.
I don't think that cocktails are particularly "classy"...unless you normally "shoot" whiskey and chase it with PBR.
They are really designed to make the alcohol more palatable.
I'm mostly a bourbon, rye, tequila, rum, and beer drinker; all of which tend to be on the sweet side. So, unless the OP wants bourbon, rye, tequila, rum, and beer suggestions (and he says he doesn't like sweet) then I can't offer much.
Gin is dry and herbal.
Many (not all, but the popular ones are) Scotches are dry, smokey, earthy, and briny.
Vodka has no flavor. It's Grain Neutral Spirit (GNS). That's why it mixes so well.
Bourbon typically has a caramel and vanilla base flavor.
Rye is similar to bourbon but is "spicier".
Tequila has a unique, but "sweet" base flavor.
Dark rums tend to have a sweet, almost plum, flavor.
And there are thousands of different kinds of beer. West Coast IPAs are super bitter. East Coast IPAs tend to be more balanced. Stouts are usually sweeter with a toasted, coffee, chocolate flavor depending on the style...
I don't see what any of this has to do with being "classy". Does the OP really want to learn about beer and booze or does he just want to "look" like he does?
If you want to try some good bourbon/rye that can be had neat or mixed:
Buffalo Trace
Booker's
Sazerac Rye
Old Grand Dad 114
Wild Turkey Kentucky Spirit
Four Roses Bourbon (single barrel or the yellow label)
Old Weller Antique
Elmer T. Lee
Elijah Craig
Wild Turkey Russell's Reserve