Australia can be difficult to immigrate to unless you are a New Zealand citizen, have a hefty sum to invest in job creation or are young and fit some exceptional skill set (which given a shortage of working class people to keep the economy running, can actually be surprisingly unexceptional!)
It does offer a quite similar lifestyle to Argentina. Laid back, suburban, similar weather, lots of BBQs, rugby etc only way, way, way better paid and everything just kind of works. Think $150k per year or more to hold a "stop/ go" sign on a roadworks site.
As for the European Union (EU) or Unión Europea (UE) it can be very easy to immigrate to. Not only for those with Italian or Spanish passports, but pretty much anyone who has about EUR 250-500k to buy a property - it can come with a golden PR visa attached in countries like Spain, Portugal, Greece etc with rights to work and study.
Many middle class Venezuelans actually sold everything and moved to Spain using this option and now live in fancy neighbourhoods like Retiro in Madrid but work in supermarkets.