Holley Retrobrights (LED). Yes they are expensive but they outperform H4 even with relay setup. They look like stock, plug-and-play, no relay required as LED draw is extremely low. In return, you get modern performing LED lighting which will last a very long time and a stock look. They offer 5 3/4 for quad headlight setups or 7" for single headlight setups. Ask me how I know, I run them on my 66 K10 Suburban with no relay, superior lighting performance. Tested them on my other 66 Suburban with relay setup, no light output difference. If you run H4 lighting, relay setup is highly recommended.
https://www.holley.com/brands/holley...nd_headlights/