Well, to color comics with markers, you should have a good understanding of color theory. Decide on the light source and shade accordingly. Also, practice on scrap paper to get the feel of the markers.
First, get familiar with the types of markers available and their color ranges. For coloring comics, it's important to have a light touch for gradual blending and to build up layers for depth. Also, pay attention to the details and edges to make the colors look neat.
Copic markers can be great for comics. They have good blending capabilities and a wide range of colors. However, they can be a bit pricey. But if you're serious about comic art and have the budget, they're worth it.
I'd recommend Tombow Dual Brush Pens. They're versatile and give nice bold lines. Another option could be Faber-Castell Pitt Artist Pens, which have good durability and consistent ink output.
Well, novel markers could be anything from a certain color that has symbolic meaning to a particular style of dialogue. They serve as cues for the reader to pay attention and understand the deeper layers of the narrative.