Solarpunk BreadTube

I suppose it's ambiguous as to what exactly to do, since each situation and area could need a solution unique or catered to it, but I share your desire for a more concrete set of steps.

I've been tossing around some ideas in my head, and I suppose if I were to write out an action-plan, it'd be something like:

1. Find enough like-minded individuals to pool resources into creating a worker owned cooperative (with all the planning and market viability that comes with).
2. Convince your fellow worker owners to put aside a portion of the profits to be used to kick-start another cooperative that will eventually replaces a particular need that is currently being fulfilled by an outside private business. As an example; if your cooperative contracts with a shipping/trucking company to distribute your goods, use the money set aside to fund the creation of a worker owned shipping company, which can then ship your goods, or goods from any other worker coop at reduced rates in solidarity, while charging market rates to non-cooperative businesses. This would allow you to better compete against private corporations, as they would not have that ability without completely buying out and owning those other services (In a nutshell, do a spin of what Ford did by eventually creating and owning their entire production chain, but instead it's made up of mutually beneficial and cooperating worker owned cooperatives). I believe Mondragon has already successfully implemented this step, it just needs to be replicated worldwide.
3. As part of a multi-pronged approach, also implore your fellow worker owners to set aside funds to help unionize the workers of competing private businesses (AFAIK, there's no laws against this, though please correct me if I'm wrong). This not only helps benefit the lives of those workers, it would (hopefully) make it easier to compete against those corporations, which may choose to raise prices to maintain their shareholder's profit margin.
4. Continue steps 2 & 3 until revenue increases to the point where you can then seriously fund other useful activities, such as mutual aid organizations (ex. food not bombs, ferrer schools, etc), as well as fund the creation of co-ops completely unrelated to your industry, but will displace an existing exploitative private corporation.

Of course, the first step of actually getting a successful cooperative off the ground that can then focus on the next steps is likely the hardest part.