dont forget part of buying sustainably is that you dont buy as much. i understand for videos you may need to at times, but its better to get more wear from clothes you already have instead of buying more even if thats secondhand purchases.
A couple months ago I saw the white Blair dress in a charity shop for $30 and I thought of you! It was the smallest size (I forgot if it was 0, 00 or x-small) and sadly it was a tiny bit too tight for me at least 🙁 It was so fun just seeing it in person though. Gave me such memories of watching gossip girl and I recognized it right away