Stop in for a cup of coffee

It is starting to dawn on me that the lack of answer had to do with "what is he talking about". lol Sorry.

Headlamp - Wikipedia

The top picture is asymmetrical low beams. All high beams are symmetrical. The advantage is that the light on the right side of the road lights up further forward to see pedestrians, or whatever else is on the edge of the road, animals not looking at you, or an obstacle. On the left side of the road the low beams have a much shorter beam not to blind oncoming traffic.

A lot of people are afraid that such headlights will blind oncoming traffic, but headlamp lenses are shaped so they have far less stray light upward than the ones you are used to here, even if the bulbs have more watts. Gives better light, and safer driving.


Bill
All legit headlights have an asymetrical low beam. That wikopedia about US regs being less strict with respect to glare is not factually supported. The regs are different but one is not stricter than the other.
For example the bulbs themselves have a maximum candella limit above the horizontal to the right of center, and below the hrizontal to the left of center.
Performance Requirements for Motor Vehicle Headlamps

When aiming visually, the beam pattern should look like this on a flat wall.
image001.jpg
(illustration taken from Virginia regulations)

I think this would be cool on a tuner or moden custom car.

However for a 50 year old car with stock headlights or even somewhat modified with a stronger light, there is really no point, these old cars will never match HID lighting or any kind of lighting that came to be in the 10 -15 years
There's no point in putting good lamps on a car???? I'm sure that's not what you mean.
While there are some really good new headlight systems, there's still a lot of new vehicles with very mediocre headlights too.

The nice thing about the older lamps is they have glass lenses and were standardized. That meant (and still means) they don't haze and its easy to install some pretty good lamps and bulbs.
The thing to watch out for on older cars, especially our A-bodies, is the headlights were wired for lamps with lower power draw. Nominal 40W/50W was the power drawn by the lamps used until around '73 or '74. Installing a relay circuit is really a must on an a-body using higher draw lamps.

Bill - Your cheapest choice will be sealed beam Nighthawk, H6024NH.
But if there is a lamp you really like, I think most if not all US states now accept ECE headlights onb public roads (not right hand drive) if thats a concern.