My favourite soft drink in a can is Coke. Any cola would suffice but often the pizza special at my best place offers 3 free cans of a Coke product.
I don't drink it, though. I use it to clean the toilet.
Yes, I am serious. Cola is very acidic, which is good to clean porcelain. Now that you have reminded me, I just poured a can into one of my toilets. You let it sit for a while and then use a brush.
I also have a bonus card for a petrol (gasoline) station that allows me to buy cola, as well.
I was addicted to Pepsi for many years, drinking at least 2 cans a day but sometimes as much as four. My wife and I both cut cola out of diets but we still do carbonated drinks. Now we only drink ginger aie, either Scheppes (also a Pepsi product) or Canada Dry, a coke product.