Yes, we publish vacancies daily. Job ads are especially effective to generate leads but they can also be used directly, that is, to apply to the advertised positions. Almost every European country has several thousand of commercial ESL schools. They rely on advertising, both online and offline. You need to know the market to determine your best options.
Ignorance is costly.
I used the techniques you provided at the fair hosted by Search Associates. The director was impressed by the offers I was receiving as he only marketed me as an intern. A lot of people only dream about going overseas, never taking any action. Dreaming will not get you anywhere. Here's a good example.