If buying a large lot, ensure the whites or ivories actually match; different brands or ages can have varying undertones. Cleaning and Preparation
BravoBride : Offers a "reception" tab with thousands of listed linens.
The go-to for vintage or upcycled linens. Look for items labeled "pre-owned" or "vintage".
Sites like Fabulous Events or The Party Peeps sometimes sell their "gently used" rental inventory at a deep discount.