Best way to clean MacBook Pro 2016 keyboard?

I do pretty much the same as Phil A., with just a drop of water on a corner of the cloth, if need be

 

Costco sells a very light screen cleaner fluid that is safe for use on the keys\screen\chasis of a Macbook Pro. It's light enough to not have concern for damage, but there's enough to it that it'll just cut through the fingerprint grease on the keys. Been using it for years on all of my Apple products. Never spray directly onto a product through. Spray the cloth then use the cloth on the screen and keys and chassis. If you spray the keyboard or screen you're just asking for issues.

Costco sells it for 2 big bottles, a small travel bottle, and two terry cloths in a set. Great deal.

The big mistake people make with cleaning using those terry cloths that come in a set is not washing them frequently. Put the cloth in the wash after each use. Whenever you use it, the dust, grease and chemical\bacterial transfer from the device to the cloth. So to put it back in the drawer and use the cloth again without washing it is basically just saving the dirt and grime, letting it dry out, and then re-using it next time and damaging the computer.

 

I use this for both keys and the screen. I like it because it is gentle enough on the delicate AR coating of the glass, but also removes the oil from fingers.

I tend to prefer clean thicker terry cloths over others because I find they reduce the chance of a fine particle scratching a finish.