Here you will find links to websites about phrasal verbs, which are a very common and important aspect of the English language.
There are hundreds of pages about phrasal verbs online. So selecting the best is a difficult task. Here are three that are recommended, particularly the last one if you want to quiz yourself on the topic.
This is a 200-word list from EnglishClub. It has a very short definition and example sentence of each phrasal verb. Good for learners in a hurry. The page has links to other parts of the site of interest and use to English learners.
An excellent page from 7esl.com, with links to other outstanding resources from English language learners. The comments from visitors are overwhelmingly positive.
On this IST IST = International School Tutors site there are various quizzes to learn about and test your knowledge of common phrasal verbs.