Dear Aspirant,
Singapore is one of the best country across the world for Business and Finance Studies. Some of the best institutions for Masters of Business Adminstration (MBA) are as follows-
1. INSEAD
2. NUS (National University of Singapore)
3. Lee Kinf Chian School of Business
4. Manchester Business School
5. Nanyang Business School
6. ESSEC Global MBA
7. The Strathclyde MBA

You can visit the respective websites for details .

Hope this helps you !