Star Trek, anime, Godzilla movies, metal music and other related genres, astronomy and planetary sciences, as well as some video games
All of the Godzilla series
Panty and Stocking with Garterbelt, Highschool DxD, Ika Musume, The World only God Knows, Seto no Hanayome, Planetes, and Cowboy Bebop
The Adventures of Gotrek and Felix series
Minecraft, Space Engineers, not too many