It gravely disappoints me to discover that the only person with a sensible attitude here is rubah. Seriously you guys, think about what that says about you. You were out-sensibled by a
girl.
We would need to relocate to somewhere with an ongoing and reliable power supply (And I do mean all of us, so US members would need to find clear runways at major airports and the rest of us would need to meet in our respective countries and learn to autopilot). Vegas is, ironically, a good bet as it is powered by the Hoover Dam, which is possibly our single most efficient source of power vs. effort of maintenance we could hope for. Nuclear plants would also be good except they'd start shutting down very quickly as safety measures. Fossil fuel plants would simply run out within a day or two. So yeah we wouldn't actually get to sit around playing veedjuhgaems for very long, sadly

It would also place a very short lifespan on a whole lot of food, so unless people know how to preserve stuff, we'd want to gorge on fresh fruits, vegetables, and meats in the first couple of days while we still can.
Of course that power issue would give us only a brief window to arrange our meetings. But we'd have to designate places people could get to in order to meet and form larger groups. Assuming we succeded in this, and can get some birds in the air (Shouldn't be a challenge to find a fuelled one, but I don't know to what degree they depend on ground control existing. If autopilot works, we're fine, because autopilot can do it all these days. If it doesn't... I've played Microsoft Flight Sim!) we can meet up in the US. Aside from the Hoover Dam it's also got plenty of material wealth we can use in the first years before they degrade.
Of course all this time we're also avoiding all the fires, explosions, wild/increasingly feral animals, floods, etc. etc. which result from a complete absence of Humanity.
Then we plan for moderate-term survival, which we should easily be able to scavange enough supplies for, while we think about the future. We'd later need to find a place which isn't subject to extreme weather, is good for farming, and has access to natural resources like trees in abundance. We'd be able to rely on machines, cars, existing fuel, etc. for some time, but these supplies would not be infinite.