Viz Media uploads a plethora of anime series on YouTube and makes the content entirely free to stream. There are iconic series that is instantly recognizable. Some of these include the original version of Sailor Moon, Naruto, Hunter X Hunter, Death Note, and Inuyasha to name a few.
Currently, Viz has the content organized by episode in playlists to make viewing very simple. Additionally, the episodes are punctuated with different ads, which is a small compromise for the free content. It is important to note that it may not be visible in some regions and VPNs may be needed. The episodes are uploaded in the Japanese original audio versions with English subtitles so it has not been remastered to the aspect ratios.
Image Credit: Viz Media, Sailor Moon