Are you on well water or city water? Have you had it tested for contaminants?
If you do have high amount of iron, if you want to avoid orange rings around your toilets, tubs, shower surrounds, etc. you’re going to need a whole house filter. These don’t have to be expensive.
But first, I’d check to see what exactly you need to get rid of here. You might only need a simple 5 or 10 micron sediment whole house filter at your main. Cheap and easy. Or if you have bacteria, ecoli, etc., you will have some bigger issues.
Most people who want filtered water at their faucet tend to go R/O.
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