Debi,
There are a lot of preferred color charts out there on peoples blogs. Some charts have been made to match SU ink colors as on Ellen Hutson's Blog. Plus Ellen also sells the markers.
I also have a chart for preferred colors of the top 36 and the top 72 that come as recommended by Copic on my
blog.. I also include printable charts for you to use.
Also if you go to U-Tube there are a lot of videos on how-to with copics. And one last site that I know sells copics is Carpe Diem Store. They were on sale there a little while ago, not sure if they are now.
But basically choose any color and then to get blending capabilities choose the color that is 2 or 3 numbers up and 2 or 3 numbers down from your original choice. This way you now have endless blending options. Hope that makes sense. Feel free to Pm me if you want anymore info.
Thanks