Best (low calorie) junk food?

I’m trying to lose a few kilos and prior to this my diet was almost entirely junk food. Now I’ve cut down my calorie consumption to over 1000 calories per day. Lately, I have been having very strong cravings for eating packaged junk food like chips/ chocolates, etc. So what are some of the tastiest low calorie PACKAGED junk food below 200 calories?