I think it could make sense on the Librarian Dashboard to have a filter on the "User-Added Books" list to sort by number of interactions. Meaning that the user-added books which have the largest number of reads/reviews/etc would show up first, and therefore we could confirm/correct user-added books which are the most used first, thus having the largest impact on the database and user satisfaction. Given that it's a huge list, I think it could make sense to have some kind of prioritisation of this kind.