Completely removing the U.S. Government from the health care market (Medicare, Medicaid, Obamacare, uncompensated care, etc) would be a great start.
Do you know any countries that have no government involvement in healthcare that has good health outcomes?
You are perfectly fine to have that belief, but the majority of people disagree with you, which is one of the primary reasons the system is designed as it is.
When somebody is sick we generally save them even if the cost/benefit is poor. No market is going to solve this if you want to save sick people who don’t have a lot of money.
There is no place in the world where health care is solved, it’s one trade off vs another.
The US system is also far far from perfect but your solution is quite shallow and unlikely to fix things in a way society wants.
If you've ever spent even five minutes reading up on that stuff you would understand that health and medical cannot be a free market. It can never be a free market.