Osram Silverstar or Philips VisionPlus are the top upgrades but not sure they come in 9006 (low) and 9005(high) which i'm almost certain your car has. Second in line are Sylvania Xtravision (pink and black packaging; or Napa something or other, part is 9005/6BL) which are easy to find, about 15 to 20 apiece I think. or, if you really want lumens, at the expense of a little additional backscatter to you and glare to oncoming drivers (depends on how well the cutoffs on your car are designed), you can drop-fit 9011/9012 lamps. figure about 30 each from specialized retailers online. stock 9006/5 are 1000/1700 lumens, nominal (plus or minus 15% which is where the better lamps shine, if you will pardon the pun). the 901x are 1700/2300, same life expectancy of 1000hrs for low, ~250 for highs.
HID conversions are coming under a lot of fire from the enforcement and NHTSA is cracking down on retailers of the same.