A collection of databases and links that can help you find primary source data. If you don't see a collection that quite fits your needs, one starting strategy is to search for collection of [your topic] or archive of [your topic] in google.
Below is a list of specific journals that might be useful for your research in this course. It is not comprehensive. Depending on your topic, there may be many more in the databases listed above that will have good information you can use!