We currently have the following tags for various kinds of maids:
- maid (for western/French maids)
- maid bikini (for two-piece swimsuits inspired by maid costumes)
- Wa maid (for Japanese maids)
- Victorian maid (for more modest western maids)
- maid leotard
- maid one-piece swimsuit
- Qi maid (for Chinese maids)
- jersey maid
- tactical maid
And some copyright-specific costumes, like Cafe Maid (Love Live!), Maid Fairy Tale (Idolmaster), Nakabayashi Yoshitaka's Maid Uniform (Kore ga Watashi no Goshujin-sama) or Summer Maid Coord (Pretty).
I was thinking if we could develop a tag encompassing all kinds of maids, or at least a catch-all for non-traditional (non-French) maids. Currently Wa maid's wiki mentions that it and maid are mutually exclusive, so I would imagine most of them "should" as well, so they cannot be simply tagged as maid, unless we change the definition.