Related: Are there animes/mangas we want more questions for?
The above question was related to what we should do about skewed tags and whether there were specific tags we wanted questions for. But it really didn't gather much in the way of a list; one answer came close, but it is limited, and difficult for us to still use that after so long.
So, in order to give an idea to users who want to help generate new and interesting content: What anime or manga series do we want more questions and content about?