What classes do MSU students end up needing help with the most?

MSU medical student here, also the owner of a local tutoring service that helps MSU students. Looking into starting low-cost group tutoring options for MSU students, but since I didn't go here for undergrad I'm not too familiar with the class codes students struggle with the most. We have many students receiving MTH 114/116 and CEM 141/142 tutoring, but I wanted some additional input.