I like these: https://eu.perixx.com/products/periboard-535

The F-lock nonsense isn't too awful, you get all of the keys, the layout is pretty standard, you can buy ANSI layout ones in the UK, and there's a full set of meta keys that are usefully symmetrical enough. Also: connects to PC with a wire. No batteries required. (The wonders of modern technology!)

Haven't tried the brown switches.

The red switches are quite light touch with a nice positive action. Very nice to type on for text, where my fingers can get into a good rhythm, but it's a bit too easy to hit the wrong key if I'm going for an arbitrary keyboard shortcut.

The blue switches go click, which feels great to type on, and I've found it does help a bit with the problem of hitting the wrong key (something about the more obvious multimodal feedback gets my subconscious on the job I suppose) - but I never quite got on with the slightly heavier key action.

I used to use the MS Ergo 4000, and I've found this a good replacement. The keyboard layout is very similar, as is the reverse tilt angle, and the palm rest is fine, even if it's IMO inferior to the MS 4000. (But: the MS 4000's reverse tilt stand, a single piece of solid plastic, is significantly more solid than the Perixx's little fold out things. Worth bearing in mind if you're in the habit of resting your elbows on the palm rest when in thought.)