For adults, plain ol' baking soda is the best toothpaste even made. Don't confuse plain baking soda with so-called baking soda toothpaste. The toothpaste may contain fluoride so check the label and the ingredients. Most importantly is picking a dentist who doesn't believe in fluoride. There are a few, but not many.
Most dentists never take the time to study both sides of the fluoride issue.
If they did they would discover for themselves why this controversy sparks such heated emotional debates.