We all know about Harvard, Stanford and all of these business schools.

But what about the ones that are not so well known? Maybe there are others that have less name recognition for internationals but are a bit less expensive (while still having a good career outcome).

Is there anything like this? I would love to hear about them.

That is exactly why there are MBA rankings. They do an excellent job of spotlighting less well known universities with excellent business schools, like Dartmouth, Duke and Emory. http://rankings.ft.com/businessschoolrankings/global-mba-ranking-2019

It also depends on what your goals are, which you haven't given any information about, and what you mean by 'not so well known.'

Beyond the ranked schools that Duncan has mentioned, there are also large numbers of 'below the radar' schools that may have international accreditation but don't often show up in the rankings. These business schools are often hosted by public / state schools - Louisiana State University, CUNY (New York), University of Florida, etc.