"New" Model M's: https://www.pckeyboard.com/page/product/UWZBP4A

I have issues that make my keyboards suffer [1]; I have refurbished and killed real IBM Model M keyboards from the 90s, and they lived an average of 3 years under my hands. The new one I'm using now has 2+ years and hasn't fallen yet.

By comparison the fancy Logitech "mechanical" i tried after killing the last of my old Model Ms lasted approx 6mo.

[1] psoriasis on my hands, so my keyboards are subject to a constant rain of acidic skin dust and blood, and frequent cleanings.

The key variety and layout, plus the builtin three button mouse stick pointer on the Model No.: SK-8855 ThinkPad accessory keyboard is what I use. It feels cheap plasticky, looks good, I wish it would have the build quality and materials of Apple before the unreliable butterfly thin-key keyboard period, Apple has since self-corrected but I don't like their key layout. Having assignable vertical columns of keys to the left and right like the Symbolics keyboard is what I look for if I upgrade.

I prefer low profile keyboards over mechanical, because of lower noise and less movement with fingers. Personal preference.