best fit MBA in Finance

That's a really subjective wide net. For international reputation alone, you're probably aiming for a Top 15 school; however, some schools may be more well known in Vietnam than in other countries (for example, Ivy League schools vs Darden/Duke/Michigan). If you're looking to return to Vietnam or another Asian country post-graduation, you'll have to prioritize schools accordingly.

Beautiful campus is a personal choice. Have you been to the US to visit schools? Are you going to enjoy a more rural school like Cornell/Darden or something in the city like Columbia or NYU? Even so, Columbia has more of a campus whereas NYU uses the city as its campus -- you might like that or not and think that's beautiful or not; we can't tell you that.

I didn't get into school specifics here, but good luck with your research.