Quoted By:
Best Nijisanji livers for people learning Japanese? I'm about N3 or N4 and I find Emma to be one of the easiest to understand since she doesn't use a lot of internet jargon and she speaks really clearly. Petra's Japanese is really clear too since she learned the language as a teen so she doesn't slur the language like a lot of natives do. I heard Shellin's really easy to understand too, gotta check him out sometime.
On the other hand Roa feels like nightmare mode since she uses a lot of "baby" language and cutesy onomatopoeia that kids learn in Japan but foreigners rarely ever hear or see in Japanese media, on top of having a cutesy slur that messes with her pronunciation.