I saw an interesting bounty so I gave it a try. This is my second clothing LoRA, Rin Tohsaka's white camisole.
It's slightly influenced by Rin's hair color and hair style, but they can be easily overwritten using prompts. I'm still exploring how to make clean costumes.
Base trigger: white camisole
In case it's not white, add white shirt
Add midriff to make it shorter if necessary.