I've also had - and collect - an insane amount of keyboards, much like my musician friends collect instruments. I have 46 keyboards currently - mostly TKL mechanical (Cherry/Topre/Kailh/Gateron), a Moonlander, and some Apple, Microsoft and Logitech.
But the only keyboard I actually use for my work is a Lenovo TrackPoint II Bluetooth keyboard (best keyboard ever made IMO).
I used the first version of Lenovo TrackPoint keyboard for years, before I switched to Tex Yoda 2, which is pretty much a Mechanical Thinkpad keyboard, and never looked back. This brand (Tex) pretty much the only brand that makes high quality keyboards with trackpoints.
But the only keyboard I actually use for my work is a Lenovo TrackPoint II Bluetooth keyboard (best keyboard ever made IMO).