

I think a technocracy would initially be relatively better, but would rapidly decline and likely end up worse.
Initially, there would be some significant number of genuinely sincere people who would be well-positioned to move into the positions of power, and the requirement of technical expertise would eliminate a lot of the scumbags.
Over time though, the scumbags would figure out which hoops they needed to jump through in order to qualify for office, then they’d start co-opting that system, so that eventually, well-connected scumbags would, if anything, actually have an easier time of obtaining the necessary credentials than actual experts would.
I have no proposal for a non-hierarchical system because that’s the exact sort of collective thinking that leads to hierarchical systems.
A non-hierarchical system can’t be implemented. Rather, it can only be the result of all the paticipants in a system (or close enough as makes no meaningful difference) butting out of each other’s decisions.
At that point, it will and can only take whatever form it takes - whatever the manifestation of the unconstrained decisions of all of the participants might end up being.
Worth noting that while fascism doesn’t have its own unique economic system per se, it does have some common tendencies, including a mutually supportive relationship between the largest and most well-connected companies and the government, and a “revolving door” by which business leaders also hold government office and vice versa.