I got to thinking, there are quite a few brands that I like but almost never seem to find used anywhere. Atelier Boz, OzzOn, Kikirara Shoten, Triple Fortune, and so on. As far as I know, Closet Child doesn't even have a section for these brands. They crop up occasionally on sites like mbok, but they're still pretty rare.
Where is the best place to find used clothing from more "uncommon" brands? Are there any online shops that specialize in less well-known brands or am I still better off checking auction sites?