Asklemmy

Worker cooperatives (and often cooperatives in general) are an example of this. They almost always exist within a capitalist system, so are not able to completely separate themselves from all aspects of capitalism, but they are definitely examples of common ownership of means of production.

Specifically you can look up the Mondragon Corporation which is probably the biggest/best known example of a workers cooperative but there are many others. There are lots of variations on this same concept - one where risk, rewards, and decision-making are shared more equitably among everybody participating. I think the most interesting are food co-ops (and sometimes CSAs), utility cooperatives, and housing cooperatives. These are all over the place and are often quietly successful examples of common ownership.

It's hard to when any of those experiments have been met with bombs, embargoes, coups, and other fuckery

Asking why collective ownership of the means of production does not exist in our "globalized capitalist market," while denying or ignoring the efforts of the Unied States and other rich capitalist nations to actively prevent any such nation from ever existing, is disingenuous at best. The United States in particular has a long history of involvement in regime changes / coups of left-wing governments, even those instituted by entirely democratic means.