Take one of the knobs off and go to a local Plumbing Showroom that also carries cabinet/door hardware. I did kitchens in 2 different cities/states and in both I was able to find an independent plumbing/kitchen/bathroom showroom that had large cabinet hardware displays too.

It doesn't matter what the name of the metal is. All that matters is that the colors work together. As chispa said, you need to see the hardware with your own eyes to determine if they all work well together. If you don't have a local store, go online to Top Knobs and order one of any that you think will work. Then decide after you see all of them.

Don't try let the range knobs be a bit of a star anf go really simple for th e cabinet hardware .

Not sure if it will complement your appliance finish, but check out Hardware Resources Satin Bronze finish. Pictures don't do it justice. I'll try to find a real pic.

They offer a variety of styles in the Satin Bronze finish.

this is HR Sutton pull in 128mm length in satin bronze finish

Cabinets are Shiloh beaded inset in their now discontinued Taupe paint.

Countetop I believe is Calacatta Mirragio Gold