There are lots of LED lamp options available. Go for as high a lumen count as possible and consider mixing a spot light and a flood light to get a good light spread. Also remember that a bright light is no good if the lens is garbage. Generally, you pay for quality but the result is worth it.
If you don't have a battery, does your bike have a power connector for a radiator fan kit? I use this to power my aftermarket lights.
I use these. I have had them for about 8 years now but they are still excellent.
https://www.adventure-spec.com/defau...tice-solo.html