I feel like as long as it's board-related, it should be fine?
Jfashion: vkei, nanchatte, fairykei, mori, otome, lolita, aristo, himekaji, gyaru, etc etc etc
fan/otaku fashion: itabags items, cosplay,
other: side interests such as art, thematic "kawaii", makeup, cards
not okay: "I only want this one thing", unrelated manga or anime (go to jp or v or w/e), inappropriately nsfw stuff