I reccomend reading into the actual economic doctrine of fascist countries, particularly Mussolini's Italy. The Doctrine of Fascism written by Mussolini is a short easy read, translated into multiple languages.
Essentially they propose a cooporate state, that is a mixed economy. Mussolini wanted to retain property ownership and the benefits of the free market while eliminating worker exploitation and stop businesses from becoming predatory.
There would basically be guilds for each trade that were like nationalized workers unions where all the workers in a specific field and the business owners and the consumers could discuss and propose things to the government and to the other guilds.
Cooperative business model, where employees own shares of the company based on rank and earn money from that, as opposed to companies traded on a stock market was presented as the ideal business system.
Personally i think a system like that would be the kind of thing we should use.