We Have Moved on From the Basic “Big 3” Colleges and Now Have CBE Big 3 and Others

[Alpha]

It seems quite appropriate that you point out that the Big 3 don't seem to shine quite as brightly as they did in the past and that there are some schools, each coming into existence in its own way, that have moved into positions of higher prominence.  I think it's good to mention SNHU as they offer lots of programs at a good price.  I'd stretch a little farther and mention ASU as a big player.  Their cost is clearly higher but the number of degree programs on offer makes them worth a look for almost everyone.  The entire field of online degrees has evolved remarkably in the past 10-20 years.
Online Degree Programs | ASU Online

One way to think about this is to track enrollment.  After all, if a specific school is enrolling a ton of students then they must be appealing to a lot of people, even if it's not the right choice for me.  In that regard, ASU just announced 61K+ online students for the upcoming academic year.  I'm not sure how that compares to the Big 3.

135,000 at SNHU
https://www.snhu.edu/about-us#:~:text=So...e%20nation.