try natural fruit juice (or sugar syrup) mixed with carbonated water or even plain water. dilute it to reduce the amount of sugar as much as possible (fruit juice naturally also contains sugar).
while i was never a big soda drinker, one summer i was drinking a lot of it because it was hot and the soda was refreshing, until i realized that the refreshment came from the carbonation, and i could have plain carbonated water to the same effect.
i still liked a sugar soda once in a while, but i avoided developing a habit.
later while i was in austria, i discovered that they had fruit-sodas with half the sugar content compared to regular soda (only 4% instead of the usual 8%)
after getting used to that the regular sodas suddenly tasted way to sweet and now i can't even look at that stuff anymore.
while i was never a big soda drinker, one summer i was drinking a lot of it because it was hot and the soda was refreshing, until i realized that the refreshment came from the carbonation, and i could have plain carbonated water to the same effect.
i still liked a sugar soda once in a while, but i avoided developing a habit.
later while i was in austria, i discovered that they had fruit-sodas with half the sugar content compared to regular soda (only 4% instead of the usual 8%)
after getting used to that the regular sodas suddenly tasted way to sweet and now i can't even look at that stuff anymore.