People sometimes like to make generalizations about what switches are best for which purposes, but most of the time, how well a switch matches the user's personal preference winds up having a far stronger influence on how "good" a keyboard seems than any sort of correspondence between switch type and purpose. I personally like to use MX Black for gaming (and typing, for that matter), but that doesn't mean you won't be better off with something entirely different.
Do you like your keys light (low force required to press and hold, but also less ability to "catch" forceful presses before hitting bottom, less ability to deflect glancing impacts against keys that you don't want to press, and less assistance in getting off of the key quickly) or heavy (more force required to press and hold, but also more shock absorption, more accidental press resistance, and greater return assistance)?
Do you like your keys tactile (provides feedback to your fingers when a key has been pressed sufficiently, through variation in resistance force) or linear (smoother and more consistent, but without feedback)?
Do you like your keys clicky (provides auditory feedback; often more difficult to manyfastpress) or quiet?
Answer these questions and we can direct you towards an appropriate switch. We will then need a bit more information to determine a keyboard recommendation using that switch, such as your location, what extra features (like macro keys or backlighting) you find genuinely useful, what kinds of ports you have available and/or prefer to use (ps/2, USB), whether you care about looks (font, branding, whether or not the text on the keys wears off and if you can easily swap out the keys with a fresh set when that happens) or would rather save money if there's no difference in functionality, and if there's anything else you want us to know about what you want.