The Microsoft Sculpt keyboard is my perfect keyboard. They discontinued it a couple months ago, but you can still find them in Amazon. Tented and split (though it’s one solid unit, so no customization) with a separate wireless numpad for exactly the reason you described. Typing on anything else makes my fingers go numb after about half an hour.

Still thinking about trying a fully customizable one someday though, but I’m not sure it’s worth the expense for me

Seems like more web3 BS to me. Anything that Jack Dorsey puts his energy into is on my do-not-use list.