Find a keyboard similiar to Niz

Good evening. I'm looking for a keyboard that is quiet enough to work in an office without disturbing my colleagues. I recently tried the Niz X87 and thought it was fantastic, but since I'm in Europe, I don't know if it's easy to buy, and I can see the price easily skyrocketing (my initial budget was €100, but I can go up to €150 if it's worth it). Any recommendations that are at least similar? I may be able to invest a little more in the future to improve the quality if necessary. I'm not too concerned about the layout as long as I can configure it via QMK or something similar, and it will be used mainly on Linux.