I applied online. I interviewed at Northwestern Mutual
Interview
Quick and simple. It was very conversational and personal based rather than skills and testing your knowledge. It was only roughly 30 minutes long and helped you learn a bit more about the internship that isn't covered in the informational session.
Series of interviews that began with an information session, followed by a basic "get to know you" interview where you learn more about the position, followed by a final interview
Straight forward and easy. Consisted of a call and a zoom interview. First with a recruiter and then with a full time rep that was part of the internship. Fairly easy and straight forward.
Sales focused interview. Need to provide a list of 200 people and their contact info to pass the interview, and once you're hired you'll have to contact all those people.