When going for a stock look but upgraded light output:
1.Relay+H4 Halogens is a good option
2.The new Holley Retrobright line looks and performs well, I recently installed these on a 66 4x4 (no relay upgrade)
LED headlights do not require the relay upgrade, it won't hurt it but it's not necessary as the voltage draw is very low. I noticed no difference in LED light output when testing one of the Holley LED's on my GMC which has the relay upgrade.
Below is a link to a LED headlight upgrade/review I did way back in 2018 (with pics):
http://67-72chevytrucks.com/vboard/s...d.php?t=755421
I have found the H4 output pattern tends to bleed (up into trees, side of road) whereas LED's have a much sharper/focused light output. The color of LED output will depend on the brand and available options (i.e. Cool white, Warm White etc.)