In the time since your Das Keyboard, a lot has changed in the space. My favorite change since the OG days of MX, Low profile switches.
I think keeping your wrist as flat as possible feels better. Personally I am off the deep end making DIY ergonomic boards. When I am doing CAD or gaming it's best to use a full size board for speed. If you search Amazon for "low profile mechanical keyboard", you will see many examples.
I have a ten keyless and full size ANSI (brown) and my GF has a ten keyless ISO (blue). They are all different brands, but quality is good enough for a comfortable daily use.
Keychron makes some nicer high end boards, but I have not personal tried them