If education in the US or Canada is on your mind, then TOEFL is the most logical test for you to take. Most universities and grad schools in these countries recognise it as the standard test of English ability.
If getting educated in the UK excites you, you should go for IELTS Academic. On the other hand, choose IELTS General Training in case you intend to work there.
Students intending to study in Australia or New Zealand choose PTE or IELTS.
Your choice might be limited by the university where you want to apply, the cost of preparation for the test and the cost of taking the test. You should refer to the available exam dates and test centres near you to make a decision regarding which international English language exam would be ideal for you.