I have been using the Havit PBT Keycaps for the past two weeks and I really like them.
They are easy to replace and I do like the fact they are offered as white, black and orange. Granted, if you are selective, another gaming sells their keys as one color if needed.
As for Havit, they have two versions including this version with white, black and orange.
Just know in advance that these keys are not backlit, so if you like your keys to change colors, do not expect the letters or numerics on the key to light up.
Second, these work perfectly with mechanical keyboards but they will not work 100% on Corsair Keyboards.
If anything, I do like these keycaps and the puller (included with the keycap set) made it easy to remove the keys from my gaming keyboard.
If I had one wish…I wish the capslock, shift keys were orange as well…but it’s all good.
Easy to use, replace and inexpensive at under $20!