I watch several channels run by college girls who are in sororities at their school—including Alabama and Georgia. Bama has some Pi Phis, an Alpha Phi, and maybe some others. Georgia has a KD whose channel is one that I love. Then there's some girls from Arizona, ASU, Oregon, and different schools from those regions—there's some Alpha Chis in that bunch as well as Alpha Phi, KD, and some others.
For the most part, I think they do an excellent job of representing themselves and their sororities in a positive light—not sharing things they shouldn't, not being too wild and crazy, that sort of thing. The ones I watch, at least, come across as level-headed and driven young women who enjoy being involved in not just their sorority sisterhood, but other things as well.
I know there have been some bad apples, but I think the good ones are definitely in the majority.