polish your lenses and keep with 4200k bulbs. Those will be the brightest by far for output.
unfortunatley most of the aftermarket options for these cars suck, so OEM is usually the only route.
You could see if the LCI versions will bolt up, but they suffer from broken headlight adjusters quite often, or they pop off the lowbeam projector frequently. I see LCIs all over with at least one headlight pointed at the ground.