An idea from Washington's Maria Cantwell which would let states create their own versions of a "public option," but only for people making too much for Medicaid but less than twice the federal poverty level. The hope is states would gradually expand eligibility.
An idea from Oregon's Ron Wyden that would let states collect all the government's health aid and do what they want with it, even create a single-payer plan.
The key word in all the paragraphs above is states. The compromise is to create 50 different state health systems, based on each state's political preferences, and let future economic competition among the states decide what's best.