Yeah dry alcohol tabs can get a good half meter flame in the right circumstances. They're not gonna supply heat to a fucking wok or something, but for small tins/cans of soup, stuff like that? Absolutely sufficient. Even a skillet, really, will do just fine. And as you mentioned, it's a great firestarter.
other tools are stuff you'd take for granted. Canteens, glass bottles, jars (not necessarily for jarring or canning stuff, but most jars of things like jam come in standards denominations of, let's say, 16oz, giving you room to either drink or measure out liquids for preparing meals or other things like instant coffee if that's your bag).
I'm just thinking in terms of how you will manage AFTER whatever happened. You'll need to be prepared until you can manage to set up some level of infrastructure be it a community, a subsistence farm, whatever. You'll need stuff that really isn't too easy to come across. Now you might say "oh well you can make fire with two firesticks no problem", but in a nuclear environment you'll be lucky to find sticks at all, much less suitable, fibrous ones that can sustain friction without turning to ash.
Also, more importantly, if you DO maintain a bunker, fuel for generators is infinitely more valuable and should be priority over space for fuel for cooking. Unfortunate, but being able to see and heat yourself comes before hot food.
I'm getting into boring ass bunker retard stuff now though.
Food wise, things like hard tack are super easy, and you can bake fruit into them no problem, and they last, well, almost forever. Sugar, salt, pepper are also super important.
Pretzels, biscuits/cookies, peanut butter and jams of some sort all excellent choices, they keep exceptional lengths, powdered drink mixes (instant coffee, teabags, regular powdered drink mix) mostly for variety than anything else, even if you drink nothing but water, you'll appreciate it when you're in a damp basement for 3 months with nothing good coming.