ok, i might just order this keyboard:
https://www.amazon.co.uk/UrChoiceLtd-Mechanical-RK61-Waterproof-Anti-ghosting-Black-Blue-Switch/dp/B074V4HDSW/ref=sr_1_8?crid=1ZJY601LKY6K&keywords=mechanical+keyboards+bluetooth&qid=1579535344&sprefix=mechanical+key%2Caps%2C209&sr=8-8
instead of spending over 100€, do you know which brand of switches they use?