[Tallest]

Try some white OZ Ultraleggeras or something similar. Might look cool, if you want something different but not gold.
I think gold actually works well with white, like some BBS tyre of rim with silver polished lip.

On other hand, gunmetal is very safe choice, and looks good.

IMO AW is nice color that goes with all rims at the end of the day, so its down to what you like personally. With all above mentioned colors, you wont look like you mismatching or something.