The stock set up is fine if it is working like new.
But by now the reflector probably isn't as reflecting well as it once did, the inside of the lens is probably dirty, and you might not be feeding full battery volts to the bulb.
And some Halogen bulbs are not built to OEM standards and don't focus properly.
So, fitting a LED which is probably even further out of focus into the existing light isn't going to do much, it seems that you have to change the whole assembly to something like the sealed beam units which were around a few years ago, but with Leds.
It is possible to remove and clean the glass, folks like Eastern Beaver sell high quality headlight relays , and as has already been said Phillips
+ 120 or better bulbs work well.
If you feel you need more probably better to fit a couple of LED auxiliary lights, prices vary from $15 to $450 - each and lamps at each end of the spectrum seem to work for some folk.
I have a $15 pencil spot on the bars which shines well left in an attempt to catch any wildlife on the verge and it does the job well, finding one with a good cut off dip might be harder.