If you want the absolute best and money is not an issue, look no further than the Razer Huntsman Elite.
It is made out of Razer’s new optical switches, which uses light sensors to detect key presses, making these the fastest and the most durable switches right now.
The keyboard is available in clicky (purple) or linear (red) options, and it comes with an RGB powered wrist rest.
However, note that this keyboard needs 2 USB slots for power, and doesn’t come with a USB or 3.5mm audio passthrough. The Razer Synapse software also does not have a macOS version, so macOS users will lose all the customisation that Windows users can enjoy.
If Synapse is not your thing, or you want additional macro keys, you can also consider the equally awesome (and bank-busting)