These databases can find all types of articles and multi-modal resources. However, they are best at finding academic research articles. Do you need a scholarly or peer reviewed article? It's a good idea to begin here.
This RSS feed is sourced from the New York Times: Labor - The New American Job, which tracks current news in labor-related topics in the US.
These are examples of multimodal information sources. There are many other types of multimodal information and writing. Please consult with your writing instructor about how to incorporate multimodals into your writing assignment.
The following is a selective list of policy institutes (think tanks) and organizations that focus on labor-related topics. This is not a comprehensive list, but it is a place to start.