I often mix sparkling water with stevia and a little vanilla extract. It's delicious, tastes a lot like cream soda, and not bad for you. There are also some flavored San Peligrino sparkling waters that you can get at Costco that taste great.I love the liquid (colas) too much.
Soda is bad for you, but I’m not sure what else to drink during a meal. Alcohol, even at moderate amounts is arguable as deleterious. Water is weak and ruins stomach acid/digestion. Milk? A lot of people have qualms with it as well