If you're interested in data for your corpus, I recommend translated Manga, song lyrics, and the Bible. See my other comment above about Pingtype - some friend

If you're interested in data for your corpus, I recommend translated Manga, song lyrics, and the Bible. See my other comment above about Pingtype - some friends have asked me to make one for Japanese-Chinese, or Japanese-English, so I'm making a note of possible data sources (Naruto, One Piece, One OK Rock, Ellegarden, Hillsong Global Project, 新改訳聖書). I've made a note of your dictionary project, so I can look into it in future!