For the list of non-series tags, see: https://data.stackexchange.com/anime/query/1863699.
Q&A for scientists using computers to solve scientific problems
WITH NonSeriesTags AS ( SELECT Tags.TagName , TagSynonyms.SourceTagName FROM Tags LEFT JOIN TagSynonyms ON Tags.TagName LIKE '%' + TagSynonyms.TargetTagName + '%' WHERE Tags.TagName IN ( 'aimer' , 'barasui' , 'hayao-miyazaki' , 'hideaki-anno' , 'hiroyuki-sawano' , 'jun-maeda' , 'kajiura-yuki' , 'kazuki-nakashima' , 'kazuki-takahashi' , 'ken-akamatsu' , 'kouji-seo' , 'maaya-sakamoto' , 'makoto-shinkai' , 'mamiko-noto' , 'mamoru-hosoda' , 'mamoru-oshii' , 'masamune-shirow' , 'sachika-misawa' , 'shun-saeki' , 'domo-kun' , 'hatsune-miku' , 'os-tan' , 'super-sonico' , 'crunchyroll' , 'funimation' , 'gainax' , 'key' , 'kyoto-animation' , 'madhouse' , 'netflix' , 'sentai-filmworks' , 'studio-ghibli' , 'type-moon' , 'australia' , 'england' , 'europe' , 'germany' , 'greece' , 'india' , 'japan' , 'north-korea' , 'singapore' , 'spain' , 'united-states' , 'anime-expo' , 'anime-no-chikara' , 'anime-planet' , 'claris' , 'comiket' , 'myanimelist' , 'pixiv' , 'ribon' , 'shonen-jump' , 'vocaloid' ) ) SELECT Posts.Id AS [Post Link] , Posts.Tags AS [Current Tags] , NonSeriesTags.TagName AS [Potential Missing Tags] , NonSeriesTags.SourceTagName AS [Tag Synonym] FROM Posts INNER JOIN NonSeriesTags ON Posts.PostTypeId = 1 AND Posts.Tags NOT LIKE '%' + NonSeriesTags.TagName + '%' WHERE LOWER(Posts.Title) LIKE '%[^a-zA-Z]' + REPLACE(NonSeriesTags.TagName, '-', ' ') + '[^a-zA-Z]%' OR LOWER(Posts.Title) LIKE '%[^a-zA-Z]' + REPLACE(NonSeriesTags.SourceTagName, '-', ' ') + '[^a-zA-Z]%' ORDER BY NonSeriesTags.TagName , Posts.Id