Realforce Keyboards are the classic highest quality keyboard, since 1990s, loved by keyboard fans. This is even before the mechanical keyboard craze after 2010.
Realforce 87U tenkeyless Buy at amazon
Topre Realforce 89s Keyboard 10th Anniversary Keyboard
This keyboard has Japanese layout. Note the very short space bar. This is actually superior design than normal USA layout, because, huge space key is a waste of space. [see The Space Key]
The traditional huge space bar came from mechanical type writers, and habit dictate since. See: Keyboard Design Flaws.
My Opinion of Realforce Keyboard
Realforce keyboard are very expensive, typically over $200. They use topre key switch, and high quality build, keycaps, key label. However, they are typically not programable.
In my opinion, it's not worth it. But, better than Happy Hacking Keyboard.