Search by Genres
People sometimes have a hard time looking through if they are looking for a specific kind of genre and not sure what the anime is about. I think having animes sorted by tags and categories will help going through and identifing the mangas. Just a suggestion. Here's an example:
Top (# of choosing)
slice of life
It doesn't have to be exactly like this, add or remove a few to suite what you want.
Who would sort all the manga into categories? I don't mind if someone wants to make a list for all our 1000+ series.