Come up with your own layout and get that custom design made.
Ah, yes, just searching for the wide RShift, on the place where it was for the last 30 years is 'customized for me'. K TNX
Despite pushing the envelope in many ways, custom keyboards can also be strangely traditionalist at the same time. Making a PCB is a risky venture and most manufacturers don't want to risk it.
A huge amount of models still use a huge 7u or larger space bar for example when something as small as 4u would suffice, and leave room for much more ergonomic placement of modifiers. (or other improvements like extra keys, keyed gaps etc.)
There's a very good chance that the above poster was looking at staggered layouts if it's their first foray into custom keyboards, and not even considering orthos.
Recently I found myself in the market for a custom keyboard, to my great surprise. Custom as not as DIY but as something different than $10 OTC or even $100 Logitech.
After the hours of watching pics I decided to just see it with my own hands and went to a shop which specialize on them.
And there I confirmed the feeling what I had before - 99% of these keyboards, despite quite advanced tech gone into them on all layers, are not usable, because they are made to stroke the ego of the owner but not for the actual work. This is especially evident by the crammed right cluster which makes typing brackets, curlies and quotes quite a pain, because the Shift key is gutted and nowhere under the right pinky.
Using something else than microUSB or Type-C (for the PC connector) is just a cherry on top.