I can't really eat chocolate these days, 'cause of the diabetus, but I keep some around in case by blood glucose crashes. My favourites were generally
Coffee Crisp (the only way I'd take anything with the word "coffee" in the name) or, sadly, one that went out of production a couple of years ago;
Cherry Blossom.
If I'm really hankering for some chocolate then I'll pick up a bag of something like
Russell Stover sugar free pecan clusters. Unfortunately they can be pretty pricey and supply isn't all that stable. They'll occasionally go on sale and I'll get a bunch.