Here again, it depends on the structures in the host city. People have no wish to settle in areas like Fort McMurray, for example, where everything needs to be built from the ground up and where workers see themselves as temporary—they're only there for a few weeks and then they go home. Often, it's only once families have moved and are seeking a school for their kids that they start to take concrete action.
In Edmonton, organizations for francophone African immigrants and Acadians are integrated into the francophone community. In my opinion, when reception structures do exist, it's possible to go out and seek them.