There are filters that will get rid of fluoride I know that much just crazy expensive.
RO?
You can make activated coal yourself if you want. That will get rid of any contaminant to the point you may want to add some minerals to the water afterwards.
Reverse Osmosis
Those are good but I don’t think they filter everything I do kind of want one though
Correct, they don't filter everything. You could run it through multiple different types of filters though, which is what many whole-house systems seem to offer. Another issue is the water that comes through RO is so pure that it tends to pull things into it. So you also have to be aware of your plumbing and if it can handle RO water. Or so I've been told.
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