There is no so-called “free scholarship”. There are only full scholarship and partial scholarship in terms of the coverage of different types of scholarships. Giving that you have already decided your target major, then you can choose some universities with full scholarships for MBBS programs.
Actually, most of the Chinese Government Scholarships, Local Government Scholarships and Universities Scholarships have no limitation for programs. So it’s more important for you to choose a right institution that open the MBBS for international students.