Be careful and check your state laws on what colors can be used. In Ga there are four ( I thought 5) colors that are prohibited, Red, Blue, Green, Purple. Even lights that can change to those colors are prohibited.
That said, I used XK-Glow lights on mine. The left and right sides are independent (they can be wired differently, it's very simple). When running down the road they are white, they also turn amber to act as turn signals, whichever way you're turning that side flashes amber and the other stays white. When the brakes are applied they all turn red for stop lights. Not sure how the law will look at this but, I have had them on for a while now and have ridden here in GA as well as SC, NC, & Tenn. with no problems.
While these lights are glow lights and have the ability to change to any color which technically makes them illegal in GA (they are app controlled and I have no intention of changing the colors) they also offer lights in only one color but not sure what they are.
https://store.xkglow.com/catalog/category/motorcycle/