This is my first post in this forum. I have searched for help in this topic and did not find anything (admittedly, not in great depth) so I was hoping some folks might have helpful advice.

Several schools I have investigated suggest who they would like to receive reference letters from. However, several have not. My question: Who are the best people to get references from (aside from people who will write you a positive reference)? I have asked a couple of attending physicians, and of course my nurse manager as well as an NP I work with. Which references are best? Is it bad to send one or two more letters than requested to the school?