I have to repeat a Q already asked-
Budget
Stock look
Or both?
Really these two must be answered first then go from there. I did a write up on what several have agreed is the most stock looking, high quality LED headlight.
Then it's about money-huge spread there.
You can buy an LED bulb/light to put in your halogen housing but that doesn't mean it will be "brighter" and brighter has absolutely n o t h i n g to do with beam pattern and getting all that "brightness" to the road out in front of you so lumen output is extremely deceiving-hence posted numbers don'tmean much.
I haven't tested the KC or Holley because the KC led hdlt is 3X the cost of the Grotes and the Holley Retrofit is almost 2x the cost of the Grotes but I did compare the Grotes to 3 other LED headlights and my 2018 F150 & CRV. The Grotes had much better beam pattern and reached out farther. I posted pics showing the differences.
Grotes are one of the most stock looking 7" replacements that have an extremely good beam pattern & light output for almost 1/2 the price of Holley and 1/3 the price of the KC led replacement lights of you want a stock look. These are the top two looking lights that don't look like they belong on an alien spaceship.
I think the Holleys are going for $200 ea and I just paid $110 each for another pair of Grotes.
Money no object and stock look? I'd go:
1st -KC's
2nd- Holley Retrofit
3rd- Grotes
Personally, I don't like the look of some alien looking headlight on an EB. Same with 22" rims but that's a personally opinion from an old guy who has been daily driving Early Broncos since I bought mine in 1976.
Here's a good short thread here on CB
https://classicbroncos.com/forums/threads/headlight-comparison-ipf-vs-holley-retrobright-led.316685/