If you want something just stable enough that you won't flip it, look to a Wasp. They are very similar in flight/feel to a Roc/Buzzz, yet can take more snap.
Drones are also good, however, I consider them more of a specialty disc. They are awesome for hook shots/ skip approaches/ wind. For general use (your average straight 250-300' hole) they aren't as useful. If you turn one of these over, you are either doing something wrong or you have the most ridiculously powerful snap and should be a pro.
I carry a Buzzz, Wasp, and Drone. They all have earned their slot in my bag.