My setup is that I have a 3 stage Pue New  filter system set up on the whole property (sediment, KDF55, charcoal block) primarily to remove chlorine (useful for my raised bed gardens & orchard drip irrigation system and water spickets for pets and such as well as indoor household water).  Inside all three buildings (2 houses and the garage conversion), each kitchen has a 5 stage Watta reverse osmosis system - the main one has a 15 gallon tank and a permeate pump (which reduces wasted water and increases pressure for ice maker). Â
When I take supplements from the r/o water, I add a squirt of Trace Minerals.
In my bedroom, I have a Zen Water gravity filter and mineral stones, but this one is my least favorite due to the plastic body.
I cannot legally buy a Berkey here in CA due to them not paying for state certification.