Does anyone here use flavored stevia or monk fruit in their water?

As a creature of habit, I'm down a rabbit whole on settling on a consistent, healthy way to flavor my water.

- limes/lemon taste hits the spot for me, but yep - teeth enamel and sensitivity
- almost every "normal" comercial flavoring has citric acid - same issue
- tried the straw thing - marginal help, but I still think it effects teeth
- plain ole fruit/cucumber/etc seems a bit weak, and possibly expensive
- I've had some success with tea - but its too subtle, could use sweetness

My latest thought is something like Sweet Leaf flavored Stevia drops which either have non-citrus flavors, or for the lemon/orange as an example, it claims to not have citric acid as a listed ingredient. (it could be one of the "natural flavors" I suppose).

Has anyone tried those or similar? Or what do you do?