Please go to Sweden to study for a doctorate, 3Q.

You don't need to provide English scores to apply for a doctorate. As Swedish doctors and postdoctoral doctors are employees, they earn considerable salaries every month, so no matter applying for a doctor or a visa, they don't need any proof of funds. It's hard to say when to contact the tutor. In Sweden, all doctors follow the project, and sometimes the tutor is not sure whether there will be a project to support the doctor. When I was a graduate student with my tutor, I asked my tutor if he had the opportunity to study for a doctorate. The tutor said that there is no doctor at present, but a big project will be passed in two weeks to support a doctor's quota. Swedish doctors are well paid, but there are also some concerns, that is, the cost of living is high and there are not many entertainment projects. It may be much better in a big city like Beijing or Gothenburg. According to your situation, I personally suggest that it is better to apply for a postdoctoral position. Sweden doesn't allow interdisciplinary doctoral studies, so if you want to study for a doctorate in Sweden, you must still be an old major, so you might as well be a postdoctoral fellow. Swedish tutors are quite appreciative of China's Ph.D., but they may ask you how many years you have studied for a Ph.D. to see if you have enough research experience. And the salary of postdoctoral doctors is higher than that of doctors. I hope the above answers are useful to you.