What kind of options are out there?

What I'm thinking of is for a get home bag (or bug out bag) - something packable that won't take up much space.
Something for emergency use.

The only cooking I've ever done outside the home is a hot dog on a stick over a fire, or cooking breakfast on a Coleman 4-burner propane camp stove.

I don't even know what other types of stoves are available.
I've seen some vids with these teeny-tiny, folding gizmos, but don't really know where to start researching them.
I know there are multiple fuel types, but I don't know what they are.

Here's what I'm working with to cook IN.
I just need a heat source to cook with it!