Heyho,
I am from Germany and currently moving into a new apartment. I am going to throw out my old desk as it is too low and want to upgrade to a height adjustable one.
While IKEA has some options I wonder whether others have recommendations for solid brands to check out.
I had an IKEA Idasen standing desk for years. Worked great, no wobble, ok price. I used a custom desk top, which was easy to do too. The only thing to consider, and the reason why I got a new one in the end is that its load capacity was not enough for all my stuff on the table. It still worked, but was super slow. I do have a lot of stuff on my desk though (2x widescreen, 2x heavy keyboard, 2x docking station, 1x tower pc, microphone arm, audio interface etc), so this might not be an issue for everyone.