I second, third and fourth a recommendation for the A6M. That's what I always suggest people fly with at first. Besides being an iconic Pacific theater aircraft, you barely have to worry about stalling, and it has wonderful low-speed characteristics, which means it should be much easier to land than a lot of other planes.
You'll also notice that planes will veer away from straight ahead during flight. Depending on the plane, you may have trim control over yaw, pitch and/or roll. Map them in the controls and use them
But again, not all planes have them.
I hadn't thought of it, but sluissa's suggestion of using the IL-2 is a nice one. It'll fly a lot slower and less manoeuvrable, but it is stable and has plenty of guns. Just for kicks, I sometimes use it against H8K Emilies, which are huge, robust 4 engine floatplanes. But the plane was made for ground attack.
Thendash means "Lock tailwheel" in the controls. It'll lock your tailwheel in position so that while it is on the ground, your plane will not yaw as much. It is often not enough though, so you'll still have to put in some rudder. And be careful when the tailwheel comes off the ground, your rudder will have a ton more effect
As far as starting a game in single-player, I don't even know anymore. For me those missions are boring, and I've only done online for years. I usually do quick missions to practice my gunnery
I am also super looking for flying with you all. I can usually do evenings GMT. Weekends might be hard for me right now.