>>60949821If what she feels like she can get away with interacting with on Twitter is any indication, you're good with anything that can pass as a swimsuit or cosplay with up to...mid-tier levels of skin showing?
There's some gray area between there and super skimpy, 80%+ naked bikini armors or costumes where she cuts off, also she's apparently worried about getting bonked for visible pantsu (and that one's obviously an out for costume wearing on stream anyways).
Blatant loli pandering outfits are probably ok, I don't know if she liked the recent sukumizu but pretty sure she doesn't shy away from loli Ui references or randoserus etc.