Coca-Cola is Coke. Coke is It. Always Coca-Cola. If one is a real Coke fan, as I have been since early childhood, all of these slogans are true, and no other cola will suffice. If I can't get a real Coke, I'll order something else. But having been given some serious medical advice on why cutting my caffeine consumption might help a problem I'd been having and finding, to my dismay, that it was true, I have been drinking much less Coke.
My main fallback has been ginger ale. Besides being caffeine-free, its advantage over Coke is that I enjoy it over a much broader range of temperatures than Coke (ice-cold Coke is nectar; room-temperature Coke is dreck; lukewarm ginger ale is palatable). There is also more than one brand I find acceptable. The drawbacks are that many restaurants do not stock it (or worse, try to
fake it) and that retailers rarely put it on sale. I have, off and on, been sampling store and off-brand ginger ales and not found any that I liked at all. Canfield's, for example, had an odd metallic taste.
I can taste differences in the national brands. Canada Dry is my favorite, but Schweppes, with more ginger bite, and Seagram's, somewhat sweeter, are both fine, too, and I tend to buy whichever is cheapest. But, as other pop drinkers have no doubt noticed, the price of soft drinks has been creeping up. So if anyone can recommend a low-cost ginger ale that comes close to any of the big three, I'd love to hear about it.