Yes, there are options available for post-graduate study in the UK with an Oxford English Test with a score of 9 bands. Depending on the course you are interested in, there may be different requirements for the English language test.
For example, some universities may require a minimum score of 6.5 in each of the four components of the test (reading, writing, listening and speaking) while others may require a minimum overall score of 7.5. It is important to check the specific requirements of the university and course you are interested in before applying.
If you have a score of 9 bands in the Oxford English Test, you should be able to meet the requirements of most universities. However, some universities may require a higher score, so it is important to check the specific requirements of the university and course you are interested in.