The reality in the US is that we do not have a healthcare system but rather a health insurance system. No matter how it is spun, health insurance is simply not health care.
Many people advocate for "Medicare for all" which would no doubt provide more access and negotiating prices of drugs would help, but administrative costs would soar and like Medicare we would continue the health insurance industry rather than a healthcare system. We would be simply throwing a lot more money at basically the same solution we now have but with possible broader benefits.
A system like the British NHS would be the best solution, but that would mean nationalizing all the hospitals, ambulance services, paramedic services, etc. and negotiating a service contract with the Medical associations to establish a fee for service and service obligations for any doctor that wanted to participate!
That of course is dead on arrival and nothing more than wishful thinking.
I cannot see a solution, especially considering our political and capitalistic environment.