Thanks for the suggestions. I haven't tried any yet, but I will get to them eventually.
I looked for Bundaberg diet ginger beer, but my supermarket didn't have it. I ended up bringing home Vernors Diet Ginger Soda (aspartame sweetened). I have had the non-diet variety long ago and didn't remember disliking it, so I thought I'd give the diet version a try. It's good, but I'm not sure if it's something I'll want on a regular basis.
Also tried La Croix Pineapple Strawberry Sparkling Water and Simple Truth Strawberry Watermelon Seltzer Water(zero calories for both of those). I didn't like them at all which was a bit disappointing because I usually like strawberry flavored drinks.