Other than Topre based boards, are there any cheap membrane based boards, TKL, that somebody can recommend? USB preferred.
Some of the best older keyboards I've used were classic Dells, Compaq and Gateway's famous Anykey keyboard. All very nice for cheap membrane boards. However, they're PS/2 and most certainly have numeric keypads. 'Not sure if anything exists like this without going full Topre. I'd prefer not to buy a Topre for the office where cleaning people, prying eyes and coffee spills are common.
One thought is just biting the bullet and get a Topre Type Heaven, but that still is relatively expensive and has a keypad.