No idea what LaCroix or Bubbly are, but there's a million flavors of tea and coffee. Coffee is the weirdest thing ever because one would intuitively expect it ought be unhealthy, but it seems to endlessly correlate positively with health. Obviously I mean just plain coffee - not the diabetes in a cup served at places like Starbucks.
Not sure if you are referring to the US meaning of soda (as in pop in the UK) or actual soda water (essentially fizzy water with sodium bicarbonate in it).
If it is the latter can I ask what this is based on? Genuinely interested, not being snarky or anything like that.
Also don't fall for holy or other synthetically sweetened brands of "water flavor powder" there are alternatives with real or no sugar (even if there aren't a lot)
It's probably super local still but I really do like "teaballs"
Your brain will tell you "no that won't work", but after the water your body will approve and your brain will accept that.