If you're not a "heavy" drinker, you probably don't drink a lot of liquor. Yet, from a standpoint of carbs, it's your best option. Basic "hard" liquors like vodka, whiskey, gin, even rum are distilled. The end product has no sugars left because they are used up in the distilling process. So, if mixed with diet soda, soda water, or low sugar mixers they are fine.
Dryer wine equal less sugar, though tread lightly, there are so many different wines and wine makers, they vary.
Beer is the same way. "So many beers, so little time."
A regular beer, like Budweiser or MGD, has about 1 carb per 1 ounce. The light version of these beers has about about half of that. BEWARE, MICRO BEERS AND SPECIALTY BEERS CAN HAVE UP TO 25 CARBS FOR A 12 OUNCE BOTTLE. For example, Guiness, Sam Adams, Newcastle and many more. You can google it to find out more specifics about certain beers and wines.
Well I hope that helps.
Just because you're diabetic it doesn't mean you're not human.