Coursera would be great but I do need the courses to be for graduate credit from an accredited university.

I live in Michigan and know of Madonna and Central Michigan. Central has a good reputation for business school in Metro Detroit. Have you looked at Arizona State for online? Also, what about Coursera if you want to earn some credits? They have offerings from Michigan, UVA, Duke, etc. with some leading to a multi-course specialization where you pay for a certificate after doing the work.

I want to earn some graduate credits (already have a masters and don't plan to go further that MA) to maximize my salary.

These are the choices:

Adams State University
Madonna University
Central Michigan University
University of Missouri - Kansas City
University of Central Missouri
University of Sioux Falls
James Madison University
Sierra Nevada College
Morningside College


Are any of them reputable at all?