I installed a simple fiber filter and it dramatically improved the water quality.
What I did to decide if it would work, was buy one of those little water filters you put on your sink faucet, it worked, so I bought inline filters and put them on the main water line coming into the house. I used one course and one fine. They last about a year, and only ran about $200 total for the installation.

If you have other things like sulfur I would go for a reverse osmosis filter, I have a friend who has that problem and it was the only way to get good water at his house. the stuff was so bad his horses wouldn’t drink it and clothes washed in it had a smell like rotten eggs.
I think his ran about $800 and I think he got it at Home Depot. Also, now that I think about it, he still has my plumbing torch.