"Hallo" from Germany, too.
If you like something similar to blacks, but lighter and quieter, silent reds seem to be the obvious choice. Or something smoother like Healios/Sakurios/Rosélios.
It sounded a bit "over the top" to me not long ago, but if you will build a keyboard yourself, I strongly recommend lubing the switches. Not just to make them smoother, but also to prevent any creaking sound, that is somethings created by the spring rubbing against the pin, that holds it in place - even on expensive switches.