Moi Aussi- I agree with you. My chocolates (which are amazing) are Belgian- which is the capital of the chocolate truffles. The best (Chalav Yisrael, parev and milchig) truffles (aka bonbons) are from Kleinblatt in Antwerp.
Chocolate Charm from Toronto are great too- the best I’ve come across in North America.
Parev is a different story- you can get very good, high end chocolate (with a hechsher) from Whole Foods and other gourmet stores. I’ve had Green & Blacks, Lindt (both currently only kosher in England I think), Scharffenberger and they are all great. Get the 70% or 80%. Don’t go any higher as they have very low sugar content if they are 90% cocoa or more and don’t taste so good.