When it comes to choosing your destination country, you must consider the following factors:
Agreements executed between your country and other countries regarding special visas such as the Working Holiday or J-1 Visa. If you are a European Union citizen and want to choose another country within the European Union, then this is not a factor to be taken into account, since no visa will be required.
Goal of the Au Pair programme for you; if your goal is to learn a language, then you must travel to a country whose official language is different from yours, while if your goal is to live a cultural exchange experience or gain experience in childcare, then the main factor you should consider is whether your need a visa and the conditions to obtain it.
Country's culture, customs, tradition, and weather.
WHICH COUNTRIES HAVE THE BIGGEST OFFER OF AU PAIRS OR HOST FAMILIES?
Currently, the biggest offer of Au Pairs comes from European countries (Spain, Italy, France, Germany and the United Kingdom), and theUnited States. In the latest years there has been an increase in offer from Latin American countries (México, Brazil, Colombia, etc.), Asian and African countries too.
As to host families, the biggest number of families requiring Au Pairs comes from the United Kingdom, Spain, Italy, France, Germany and the United States.