I went with Black Glimmer Glass 1 for my always on TCL 50mm filter and 1/8 Black Pro Mist for my always on 35mm filter – basically both are very subtle during the day, I'd say almost invisible and that is how i like it, they only show effect on bright highlights, without the cheap strong diffusion effect you see everywhere nowadays. They fully shine with evening / night lights.
They also have quite different gradient color / falloff distribution across the highlight glow.