Forget Type A through Type N. There are four plugs that matter: UK, EU, US and Australia. Here's which one every country uses, and which countries are cooked.
Places where your normal charger might not go in the wall. Cooked means fewer than 60% of sockets take any of the four plugs. Half-baked means you'll usually be fine, but there's a decent chance of a weird socket. Worst first.