I think cheaper can be found too. Cherry, who make key switches for keyboards, have their own keyboards. Here’s one from Newegg:
It reads “131 Programmable and 42 Relegendable keys”, so all keys can be programmed and some can be labeled differently. Looks like this:
“Preh” is another brand and I bought their 84-key keyboard laid out in just a square. Made only moderate use of that one though (if anyone wants to borrow it let me know).