A free market almost always the best choice, but it provides no value to anyone unless the buyers and sellers each have good information about what they want and need, and an ability to predict what they will want and need in the forseeable future.
Cars work like this. So does food and housing. The only regulations there are merely to prevent poisonous or dangerous product from being sold alongside wholesome or safe product. We don't, and shouldn't, have the state organizing a buying scheme for houses, cars, and food for anyone except very poor or disabled people.

Health care never has worked like this and never will.

Minimal state intervention is possible, sure, but it does not unlock the market efficiency that it would in other sectors.

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