https://www.logitech.com/en-ca/product/k840-mechanical-corde...
Then again, I also loved and have used extensively the Apple chiclet keyboard before the new magic version... ~2015 model?
So my opinion might be as good as heresy around here.
It is like a topre for poor people.
If you find an old Packard bell with a 1.25 unit wide escape key it is certainly a BTC board. That is how I found mine. 25sek (about 3 bucks) without an AT converter.
Just look for retro keyboards. The 1.25 unit escape key is the first thing to spot. Then make sure it is the dome-with-slider one and not a foam-and-foil (which are certainly degraded beyond use by now).
Personally I think the future of tactile keyboards is rubber domes and either light-based sensing or EC style (like topre). No friction, yet great tactility instead of the almost-linear switches like cherry MX brown.
Last year, I switched to keychron k1, A low profile mech keyboard. The lighting effects are absolutely stunning, it really is the most beautiful keyboard I have typed on. However, the bluetooth and typing experience it a little off. The keys are jagged on the corners and I seem to catch the corners. And bluetooth intermittently drops connection to my macbook, making it useless.