Come to Sweden (or, rather, Nordic countries in general). There are a lot of opportunities as an industrial PhD student. There are at least 3 out of 10 PhD students in my group doing research while still working in the industry. Usually, the deal is 80% PhD and 20% industry, but I know someone doing 50:50.
The Industrial PhD pays the same here, so that’s mostly a position you would take if you specifically want to collaborate with a company on some research project, not something you do because of income considerations.
Maybe it depends on the field and the country, but I know some industrial PhD position pays a better salary than the one employed full time by the university. Not sure if it is considered to be "much", but at least around 20% more.
The industry part (whether 20% or 50%) easily ends up being close to 100% in practice. And many industrial PhD positions only last a few years, after which you get a normal full-time position and are expected to finish the PhD on your free time. Realistically, this makes it practically impossible to conduct the kind of research that you need to get a PhD from top programs.