The company Unicomp, whom bought the tooling from IBM, still manufactures the venerable IBM Model M in the 122 keys version (with basically two rows of function keys instead of one and with also an additional eight keys at the left of the keyboard).

It's clickety click but that's brand new stuff still build and sold today.

Another option also still being build and sold would be a Bloomberg keyboard but I have no clue as to which switches they're using.

There has to be options out there.