Below, you'll find the full list of the 18 watercolor paints I use on my palette. I recommend you start with the 10 in the 'Essential Range' as they give you the best options for mixing.
Unless stated otherwise, all paints are Winsor and Newton. You can find out more about why I recommend these as the best watercolor paints, as well as links to order them from online suppliers, on this page.
For each paint, you'll find the pigment number, which you can use to find an exact match. I also show the tonal range each paint can achieve, from darkest to palest. You can use this as a visual reference to find a near-match to any watercolor paints you might already have.