The Lean Six Sigma Pocket Toolbox.
This is my go to reference manual. Other books will delve deeper but this a great ready reference.
https://www.amazon.com/Lean-Six-Sigma-Pocket-Toolbook/dp/0071441190/ref=nodl_
Factorio! You will find bottlenecks and have to do supply chain management like crazy. And every new manufacturing line can move that bottleneck somewhere else.
There's a demo on their front page. https://www.factorio.com/
I'm sorry, this was stuck in the spam que and I had fallen a bit behind during my holidays.
VBA is incredibly useful. Employers won't always specifically ask for it, but you simply make your work a lot more efficient if you get proficient at it.
For programming, Python and C++ are both extremely solid options. Codecademy.com has a great free course on Python which will make it easy to get started.
As for companies, basically any company that deals with physical goods (instead of services) could be a potential employer. You can look at positions like production manager, scheduling & logistics.
I personally haven’t used Power BI much, so I don’t have any suggestions there. However, through Tableau learning students get free access for 1 year, and you can get some badges (though technically not certifications): https://www.tableau.com/learn/learning-paths
You can build the models in FreeCAD, which works somewhat similarly to AutoCAD, and then export the objects to Blender and animate and render them there.
Alternatively, you can create the models directly in Blender, but it takes more practice as it's aimed at a different approach to 3D modeling than you're familiar with from AutoCAD and Sketchup.
Industrial engineering covers a wide variety of topics, not only manufacturing. In addition, it includes quality engineering, operations research, human factors, and even health care.
As for a manufacturing related text, I recommend Operations and Supply Chain Management by Jacobs and Chase.
The textbook covers topics such as: project management, capacity planning, facility layouts, six sigma, statistical process control, lean manufacturing, forecasting, inventory management, material requirements planning, and job scheduling.
This is definitely an introductory text, but I think it gets you into the right mindset and introduces you to many industrial engineering concepts. Other textbooks or sources can provide a greater amount of detail for each topic.