So I started looking for both a shape and a switch that'd suit me. I obsessed over it.
I even got a few collectible ones: a very rare split Cherry MX-5000 keyboard (comes stock with cherry brown switches but they could be swapped) and then the rare real "industrial" IBM Model M (in olive grey instead of beige color).
Eventually I found out Topre switches on the japanese HHKB keyboars (Happy Hacking Keyboard) and as I've got family in Japan, I had three HHKB Pro JP shipped to me (when family would come to visit).
I don't speak/type japanese but I dig that japanese version as a very narrow spacebar and hence more modifiers and modifiers that are easier to reach with the thumbs.
Been a happy camper since more than 10 years now.
So basically... Maybe I obsessed over it a bit but then I eventually "found" my keyboard and it's the HHKB Pro JP and found my switch: and my switch is Topre and nothing else.