- Whatever my employer wants
- Something on the exchange for quadruple the price (particularly without my employer's share of premiums)
How does the market decide when it isn't a competitive market? Why are employers allowed to pick their employee's health insurance? Why are employed people at large companies paying less than employed people at startups?
For their real value prop (covering the unlikely need for catastrophic healthcare), you 1. most likely won't ever use it. 2. have no idea how good their service is until you have no other option but to exercise your coverage.
Market-based capitalism works best when consumers can shop around, and take their money elsewhere when the good or service is not a good value. This is absolutely not the case with health insurance.
Meanwhile, medicare is pretty beloved in this country. And the public options in other industrialized nations outperforms US healthcare in most respects for significantly less money.