This outdated UN map counted forced and voluntary immigration between 2017 and 2021.
Already in this period it's possible to see that Australia and Canada stand out as receiving areas and the two countries currently have common demographic goals of increasing population.
Still trying to analyze the map without taking into account the Venezuelan, Syrian, Central African and South Sudanese diasporas, which resulted in a positive balance for some neighboring countries and not taking into account known expatriate destinations, it turns out that probably Sweden and Switzerland also seem to have strategic population goals, seeking to increase some type of political-economic weight and taking into account an enabling environment for voluntary immigration and opportunities. Of these 2 European countries, Sweden would have similar geographic challenges to Canada, as much of the relatively large territory is in the sub-Arctic zone and difficult to settle with current human colonization technologies to deal with the extreme cold.
Countries like Chile, although it's a well-known destination for expatriates and political refugees without such an apparent presence of voluntary and more economic immigration, could be the closest analogy to Australia from a geographical point of view, as it has a robust territory considering the territorial extremes and also has a desert to dealing with human fixation as a challenge. In terms of total population increase, Canada stands out more than all of them, behind only 7 countries in the survey carried out in 2020 by UN DESA.