You won’t be able to go to all of them, but going to a few may help clarify what matters.
We went to one closer to home that was not high on her list at that point, but she left with great questions to ask of the AOs or professors at the other “finalists” on her list. It also provided some relief that if Covid went in a really bad direction or going far away did not work out, she had a great option close to home that kids from all over the country wanted to come to.
The best ones had events to pick and choose from. We had a tour of a few of the STEM facilities with a great Dean and a few TAs who were doing research. They interacted with others along the way in a haphazard and completely unplanned fashion. It was refreshing that he was most excited about the new exhaust system in the Chem labs. It was very authentic and not something on a typical college tour and info session.
The student panels were hit or miss - you could do those virtually or ask for a student in the same major to reach out.
We ended up not going to a few on our road trip because she already was sold at that point. Spots were tight at events last spring and many accepted student events had waiting lists. She was great about immediately releasing those booked events so someone on the event’s waiting list could go. We had benefitted from the good karma of getting off waiting lists for schools she really wanted to see. (Translation- please do not be greedy and book a bunch of accepted student event slots and then no show.)
Definitely spend time around campus and the general area on a non-accepted student event day. That helped separate out the razzle dazzle of the dog and pony show with top professors and fancy new buildings. Walk/drive around to get a sense of what day to day will be like.