A storm lighter blows the gas out under pressure. That gives you a blue, focused flame that stays lit in wind where an ordinary yellow flame would long since have gone out. That is the whole difference, and immediately the reason it is the standard choice outdoors.
After that the choice comes down to three things: the number of flames, whether it is refillable and the size.
A soft flame needs air from outside and is blown away by the first gust. In the cold there is the added problem that the gas pressure drops and the flame gets smaller. A jet flame mixes the gas in the burner itself and suffers far less from that, in damp weather too. You notice it most when you have to hold it a little longer, as with kindling or charcoal that will not catch. A windproof flame then saves you a handful of attempts.
This category holds storm lighters with one to four jet flames, from pocket size to table model, singly and in value sets. Nearly all refillable with butane gas.
Outdoors a storm lighter is often the only one that works: at the barbecue, a fire pit, on the campsite or around New Year. If you want it specifically for lighting coals, have a look at the BBQ lighters; if you only want models you refill, those are with the refillable lighters.
When comparing, look at the number of flames, the size of the gas tank, whether the flame is adjustable and whether it has a lock. Which models perform best in practice is in the best storm lighters.