As opposed to the soda you are drinking, which has unnatural chemicals in it. That's lots healthier.
Then you look for those that don't.
Read my other posts.
I have. They tend to be very expensive and have very short shelf dates.
I used to be the type that drank more juice then pop, but then noted the contents and stopped. I mostly drink coffee or tea or water. Pop is with evening meals or tv at night.
I checked out a ton of juices back in the day and found many to have claims of no sugar... to be lies as they were only speaking of added, not the concentrate... which concentrates the natural sugars as well... which is not good either.
Fresh squeezed is the safest... but also the most expensive.