Second,(or sixth?) Angostura bitters - technically alcoholic (44.7% in fact) but you add a few drops to a cloudy lemonade or whatever
My sister is a recovering alcoholic in an industry where she does a ton of entertaining. Tonic and lime is what she drinks out because no one questions it.
South-Asian-style flavored “drinking vinegars” (diluted with soda water, or mixed into cocktails) are an up-and-coming trend in the US.
I am in the same boat as you. I have no sweet tooth- none. Cherry 7-Up and tonic water? Both taste like sugar cubes to me.
I drink A LOT of sparkling water.
We call them “mocktails” and you can find lots of good recipes for them.