Kerala, a state in Southern India, has a strong communist party that despite having to share state power with liberals in a capitalist government implemented a decentralised planned economy.
Local assemblies in villages or city districts make proposals of what to spend the planning budget on, from building schools, hospitals, roads to energy projects. Then through delegates these local proposals go to larger administrative levels and get adapted/combine into larger projects. Then these projects get approved or disapproved by a higher level of government. This happens once a year and has produced multiple 5 year plans throughout its existence.
Could this be used as a blueprint for a a real communist revolution? The problem with giving ownership of MoP to worker cooperatives is the fracturing of society's interests down to the firm (see mutualism), while organisational structures centred on the workplace tend to prioritise production over other important societal issues (see syndicalism). This encourages the maintenance of the commodity form and competition.
To reach true revolutionary ends workers ownership needs to be eventually transferred to social ownership. A planning commission organised based on the commune/society needs to have political grip over workplaces and industries. This to me seems like a viable model towards this that has been tried and tested.
https://en.wikipedia.org/wiki/People%27s_Planning_in_Keralahttps://www.sdg16.plus/policies/participatory-development-plan-kerala-india/