It would be hard to find or read any serious writings of Marx that doesn’t espouse this idea. Das Kapital is essentially nothing but an elaboration of why workers should control the means of production.
Most of Marx’s influential work was academic, and Europeans generally understand that his legacy lives in the the laws described here. Dissenters usually highlight the early stuff like Capitalist Manifesto; the equivalent of a student protest flyer. But this is terribly short-sighted and misrepresents his impact on European economics and law. He is the one of the most studied men of the 19th century for a reason.
And the only ultimate recommendation Marx made with confidence in his academic work was exactly that workers own the means of production by way of democracy.
He was something of a democracy absolutist and basically called out liberal capitalist economies for encouraging democracy in every part of society except for the workplace.
There is really not anything more Marxist than giving more control to workers.