I happen to have an enormous collection of all types of alcohol pens, watercolor pens, pencils and much more! I have 72 Copic Ciao markers but I also have 42 Spectrum Noirs and 53 Sharpies (mostly 2 of each color with both fine and extra fine points. Yes, I use them all! Oh, I forgot, I have 1 Letraset Pro marker in a blush color. (I only got one as a trial and really like it, but I have so many others right now!) They blend together quite nicely and I can get some good colors by combinig and layering them. They are all my go-to alcohol pens! I enjoy using the combos because they have different sized nibs so I am not limited when trying to get into small spaces as well as large spaces.