Where to buy silk by the yard secondhand

Hi! I live in NYC and am looking to purchase deadstock / secondhand silk by the yard (ideally bolts of 5+ yards) and I’m wondering if anyone has recommendations. I am happy to shop in person or online, but would love US-based recs to avoid tariffs (oh, also FDT).

Let me know if you have any recs! I’m hoping to make silk maxi dresses, so want to ensure there would be enough of each type of fabric to make each dress out of 1 type / pattern of fabric.

Thank you!!!