Poscas are paint markers that you can use on all support that give beautifull colors and cover well the surface upon which you’re drawing. You can find them in different sizes and in a big color range. It’s the very best for drawing.
I use 4 color pens too : blue, black, red, green, but also purple, light green, turquoise and pink. It’s difficult to draw with a pen, because you can’t erase your mistakes !