Try Nightbreaker Plus and Ultimate, Philips Vision bulbs like the X-treme Vision, Ring Xenon Ultima etc. Those are all very good and give a lot of extra and better focussed light. A good easy upgrade.
To a lesser or greater extent a lot of bulbs have a blue coating. I've tried lots of varieties and decided in the end I'd rather see where I was going, but a nice clean white did look good with the DRL's :-)
You'll still find the better engineered bulbs may have a blue coating, just much lighter or in bands to purify the light to the optimum and avoid glare.
It's just a choice depending on what your after, safer driving, a better look or somewhere in between...but that somewhere in between will always look a little yellow'y. It's either, or.