I'm not being the slightest bit condescending when I say this, but if you're asking what to wear white dress shoes with, you probably can't pull them off. (I almost certainly can't.) You probably have to live in Miami, Southern California, or on the Mediterranean, and you need a very tropical wardrobe. I think there are probably a fair number of good options out there but I'm not sure too many people have the clothes/personal style to pull them off.
Oxfords might be a bit old-man, but they're conservative and don't require the sort of flair that some streamlined loafers might...
...like say, these guys, which I think are sort of badass (if they didn't have the little bit of what looks like grey leather on the outside of the midsole).
