MBA or MSc?
The choice is yours. If you would like to have a look into the best business programs in the world, just visit Financial Times’ Business Education Rankings. An MBA usually costs more and requires several years of work experience, while MSc in Finance or MSc in Management programs can be reached with lower tuitions, and even fresh graduates, without work experience, may be accepted to these programs. At mba.com, you can study the complete list of GMAT accepting MBA, MSc, or Phd programs.
Show me the money
If you are still thinking about your post-MBA salary, then have a look at Full-time MBA courses: Show me the money, which is a short but very informative Economist article from October 2017.