Graphite is a great color to make really "pop".
I would suggest you read this article on
How to Wax
Then try some
Pinnacle Wax
I personally like a sealant first then add a "Wax" on top for that "wet shine, deep mirror look"
I personally use
Klasse
Yes I have some money tied up in my "obsession" But I like to call it a hobby. My Wife calls it something else [xx(]