Looking for a sour drink

Looking to get something to sip on for the fireworks show tonight. I love super sour stuff like the Crush guava beer from 10 Barrel Brewing Co but they don’t have it at my local liquor store. Can someone please recommend something I’d like based on my preferences?

I love sour and bitter stuff, and would prefer a naturally flavoured fruity beverage, so nothing like caramel/chocolate/vanilla. I like dry champagne, sour beer, and anything carbonated that isn’t really sweet or full of artificial flavours/dyes. Red wine gives me an instant headache, but rosé or sparkling white I can usually tolerate. I don’t like Mike’s hard lemonade because it’s too sweet and isn’t very sour. Based on all of that information, I would appreciate some recommendations and hopefully the place by my apartment will have it. I’m in the midwest so feel free to recommend stuff like Oskar Blues or Left Hand. Thank you in advance!