Sounds like you are on the right track. In my mind, "classics" includes Tabac, MWF, Proraso, Cella, D.R. Harris, TOBS, Haslinger, Pre de Provence, and La Toja, and in my mind and in my den, all of those are "must haves". All of those have been around for a while, and were popular on here when I joined this site over 10 years ago, so they've stood the test of time. There are too many newer, fantastic artisan soaps to name, and I have a lot of them in my den, but a lot of folks would consider some of them "must haves" as well.