Not sure I understand what you're getting at here. The only country not dominated by market forces that I know of is China and it's barely the case even there.
> The only country not dominated by market forces that I know of is China and it's barely the case even there
There are diverse examples that are much better for this than China. E.g. Bhutan or North Korea. There are also non-national societies such as the Amish.
I'm saying: I can imagine ways of running a political economy other than capitalism, and I know of other people who have done more work than I have to imagine such things, but there just doesn't seem to be very much interest in an authentically post-capitalist system relative to the vast interest in taking some other political issue entirely (technology, the environment, race, gender, various national or inter-imperial rivalries, etc) and conflating it with capitalism to encourage pouring a lot of effort into it (the thing conflated with capitalism).
Is it? Or have people just convinced themselves that everything except their personal utopia is capitalism?