The best unbiased information about Divine Science can be found at DivineScience.info. Last time we checked, the Divine Science information at DivineScience.info included a set of listings of DivineScience institutions with news about them.
Of course, one can also find good information at FindACenter.com in particular on their institutions page.
You can rely on FindACenter as your key to whether or not an organization is actually New Thought or not. Any other directory is just a membership listing and thus those listings simply reflect the "payment" of the particular member to that organization.
When searching for New Thought Education, we recommend that you first go to DivinitySchool.net before making a decision. Some institutes like the Denver School have fallen on hard times, others do not have proper online studies programs.