University exchange students

Hi, I'm from South Africa. I'm 19 years old and I'm considering an exchange student program in Europe. My home language is Afrikaans but I do study in English at university. If I considered studies in Belgium or any other European country for that matter must I write the TOEFL/IELTS test in order for them to know if I'm proficient/fluent enough in English? I also have a Dutch passport. Can anyone please just tell me more about exchange student programs throughout Europe, e.g. costs, accommodation etc.

Just go thru your school and they can tell you more about exchange programs available.