Whole Foods has a great selection of Zevia soda (calorie free soda made with stevia instead of aspartame). It's pricey, but I've only ever found 2-3 flavors elsewhere. Bought some of the lemon lime today and it's delicious.
I come to Whole Foods mainly to get snacks for my kids. They're currently in a grain phase (they only want crackers!), and there are a ton of options for crackers here, more than just your basic saltines or goldfish. We bought some flax seed crackers that were delicious. If they're only going to eat crackers, at least I can give them healthier options.
I love coming to whole foods; I just wish I could afford to get more than a few snacks here and there.