My choice would be the "Perixx PX-1900". It's a scissor switch keyboard with 3.8mm of total travel so you don't bottom out nearly as hard as say, a outright flat keyboard like modern Apples. While not NKRO, it can go over 6 and can do the QUICK BROWN FOX JUMPS OVER THE LAZY DOG test and only misses the Z. All the other letters register. From personal use, I used the entire A - ' row of keys and it managed that whole row at the same time without failure. I like to whip it out occasionally for rhythm games involving more than 6 keys or so. So for all intents and purposes it might as well be NKRO.
It has a decent metal back plate in the keyboard and a cult-following build quality for the price that being $40 USD. When it is out of stock, scalpers sell it for $70+ USD. So if you see it more than roughly $40 USD and you intend on buying one, wait a bit, Perixx will restock them!
The flip out feet are rubberized which is a nice touch. Being that it is a rubber-dome-over membrane keyboard, you can use compressed air to clean out the debris without it screwing anything up. It also has spill-resistance which is highly scoffed at as a "I don't ever spill my drink because I'm careful therefore nobody needs it" type of situation. Funnily enough that also applies to scissor switch keyboards. "I hate them therefore everyone should hate them". Out side of the subjective things about the keyboard, the not flat, but still slim form, the scissor switches, etc. The only real objective problem I have with them is that they seem prone to factory defects which, granted, Perixx has a decent warranty so you could just pester them until you get a good one so its more of a minor annoyance if anything.
Its no Topre let's make that perfectly clear. But for those small group of people who really love those scissor-switches and wants a great one, here ya go. Don't let other people tell you otherwise what you should do with your money. Their life choices (generally) won't get in the way of yours so you do you.
Truth be told the THOCC of Topres even the silenced ones, at 4am in the morning sometimes pisses off my colleagues. So sometimes I whip out the PX-1900 as scissor switches are famous for being EXTREMELY SILENT. While not as silent as an modern Apple keyboard, it is kind of a diminishing returns type of situation if you want your keyboard to be that silent. But there are situations where that is helpful no doubt about that. Every* keyboard has their place. (Except those lazer projection ones, those can burn in development hell and you might as well use a touch screen at that point which is basically the same thing but more developed.)
Best of all its still produced to this day (at least for now). Oh right, and unlike Apple modern keyboards, PX-1900's keycaps have a slight contour to them so touch typing isn't ungodly. They also have a semi-regular amount of space in between the keys so you can actually hit a key without actuating an entire cluster in the process.
Okay I'm done. I'm garbage at condensing information in 2 paragraphs or less!
