I think baseline items (those required for a modern, quality life) , like food, land, electricity, and internet, should be publicly owned and distributed by a central resource-management group that's democratically elected, or, if it's feasible, a resource-regulation machine.
All else can participate in a quasi-free market economy consisting entirely of cooperatives that are regulated to reduce the impact of externalities.
It'd be easy to call this "socialism" but I think most people who call themselves socialists would consider this insufficient, as I still desire some sort of market economy, and I don't desire a moneyless society.
"Market socialism" doesn't seem like a very good descriptor either.
RE: Steemians: What's your economic philosophy?