Hi Valentina,
Online tours are definitely the next best thing to an in-person campus visit. When you're interested in a lot of schools and short on time and travel funds, these online tours are a great option.
Most of the online video tours are done by the schools themselves so they may be a bit bias. However, they usually offer enough views and photos of campus, interviews, information, etc. to give you a good picture of the school. At the very least, the videos can help you at least narrow down your search to a few schools.
A good way to make sure you are getting a well-rounded picture of the campus is to connect with a current student or recent alumni. Contact the admissions office of each school and ask if they have any student representatives that you can email or call. I was a student representative in undergrad and corresponded with a many high school students who were unable to make the trip in person. I also did this as a recent alumni after I finished my MBA. This is a good way to see what a real day in the life of a student is like and what they like/dislike about the school. You can also ask if they have professors available to talk to you as well.
I hope this information helps in your search!
Best,
Amber George
