Depends on the beer
Okay, for dark ale / Guinness style brews I would say Waffle is a pretty good choice. I remember vaping Waffle (with pecan) with some strong Belgian ales and it was very nice. Because of the maple / "waffley" elements - it would be good with a stout or other stronger brews.
For a margarita, you can't go wrong with Pineapple Orange Banana or Key Lime Pie. P/O/B is also pretty good with lighter beer like Bud/Miller/Coors Light because the citrus in the vape goes well with light lager and bright hops. Would also probably be okay with an IPA although I have not tried it. I'd say Banana Nut Bread would also be good with any type of beer.
For red wine - that's a tough one. I'd have to go with Kretek. I do love the Kretek, but the smell of the vapor can be off-putting to some folks (if you've vaped it, and can smell something "odd" about the exhale, then you know what I mean). Not everyone has the same sense of smell, and it used to bother my ex-jerk more than it ever bothered me.