The Wirecutter:

If you spend most of your day typing, a mechanical keyboard can be a worthwhile upgrade over a cheaper, less comfortable keyboard. They are more durable, responsive, and customizable than other types of keyboards. The best for you depends a lot on personal preference and what you’re using it for, but after spending months testing 31 top-rated keyboards with a four-person panel, we unanimously agree that the WASD Code 87-Key is a great place to start because of its fantastic key feel, build quality, and elegant design.

I fondly remember the old mechanical Apple Extended Keyboards and loved the sound. I used an early version of the Matias Tactile Pro and really liked the racket it made.