Better round lights

[slotard]

I'm looking for a headlight upgrade on my '73 C20. I've gotten spoiled by more modern headlights in more modern cars, and was hoping to find a new setup that'll work better without changing the appearance too much.

I've swapped from refractor type housings (where the lens plays a major role) to reflector type housings (where the lens is clear) on motorcycles and it seems to help. Are there any swaps like that for square bodies? I'd be happy with a different grill, but want to stick to the round headlights and would rather not go with HIDs unless I can find a housing designed for them.