In the end, it was the Ikea Algot. It is easy to assemble, has wooden shelves, and is sturdy. I am satisfied. I took a total of 5 meters. There is also a planner on the homepage for it.
I thought you would choose the metal version. If Ikea does a good job, then there is nothing against it either. :) I am personally waiting for my TYLKO wooden shelf, but for the living room.