It's reasonable to wish to leave Canada; but generally speaking its the rest of the world seeking to move to Canada.
Australia? Lots going really well for them. I do have family in WA. Their government debt is good, economically still a powerhouse, despite government's efforts to kill their domestic industry. At least in WA, their driving laws are some of the dumbest ive seen in the world. 1km/h over the speed limit and you get a maximum speeding ticket? They have roaming speed trap cameras? Speed limits adjust multiple times in under a km. Speed limits are artificially low to produce ticket revenue. The only place ive ever been pulled over and forced to blow a machine. Nanny state problems big time in australia. Australia's gun laws eliminate the consideration of ever moving there.
Finland, norway, czech, switzerland, estonia, lithuania, look like great options, but language barrier concerns. But worse... you folks have a nutjob neighbour to the east with nukes. I currently live out of reach for everthing except their ICBMs, im not moving into range.
It would seem to me the only place for me would be to move to the USA.
Right off the top, I'd never move to any stop and identify state. Which eliminates most good states to live in. Do the same again for constitutional carry. Texas, Idaho, Wyoming, missippi, are still options. Long story short, it seems Texas is the place to go.