The one in which you are fluent in the language and the one you have a verifiied long term job contract plus the one you have a residence permit in.- John
What are your qualifications? Which university degrees do you hold in which field from which university in which country? How well did you do? And what post-master's degree experience do you have doing what for whom where? What specialized expertise have you developed which nobody in all of Europe has? There are 500 million people competing for the same job you're looking for, and by law, they have priority in hiring.
And they are fluent in the language of that country, along with - usually - two or three other European languages. . .- ibu guru