The phrase "were placed" is often used to describe the act of putting something in a particular location or position. However, there are several synonyms that can be used instead of "were placed" to add variety to your writing. Some possibilities include "were situated," which suggests a more permanent or intentional placement, or "were positioned," which implies a deliberate arrangement. "Were set," "were placed down," "were installed," "were stationed," and "were deposited" are also viable options. Ultimately, the synonym you choose will depend on the context and tone of your writing.