Corsair k70 (One of the best red switch keyboards out there)
Quickfire Storm TK (or not tk, also a really nice keyboard, it comes with red, blue, or brown switches)
Steelseries 6GV2 (a nice black switch keyboard)
Logitech G710+ (a nice brown switch keyboard)
Ducky Shine (any version, it has custom switches and backlight colors)
Any old mechanical switch keyboard (seriously, a mechanical keyboard is all you need for osu.)
If you don't want to drop a crap ton of money on a mechanical keyboard, just buy a numpad.
Those keyboards are nice for going into osu. Keep in mind, some of them are expensive. But worth it.
Quickfire Storm TK (or not tk, also a really nice keyboard, it comes with red, blue, or brown switches)
Steelseries 6GV2 (a nice black switch keyboard)
Logitech G710+ (a nice brown switch keyboard)
Ducky Shine (any version, it has custom switches and backlight colors)
Any old mechanical switch keyboard (seriously, a mechanical keyboard is all you need for osu.)
If you don't want to drop a crap ton of money on a mechanical keyboard, just buy a numpad.
Those keyboards are nice for going into osu. Keep in mind, some of them are expensive. But worth it.