Welcome to Geekhack!
The "best" keyboard is entirely subjective.
Some people like really heavy switches, some prefer really light switches.
Backlighting? Love it or hate it.
Layout - QWERTY, Dvorak, Colemak, Asetniop? Although the latter might not be the most ideal for gaming
Full size? TKL? 60%? 40%? Dedicated arrow keys required? Function keys required?
There are too many options these days
) But if you can provide a few minimum requirements and maybe someone can come up with a keyboard that meets them.