The library databases allow you to filter by Subject, which will give you a good idea of which to use for a given topic or assignment. You can select your topic from the "All Subjects" drop-down box.
You can also check if a LibGuide has been created for your course or assignment. Libguides are a great place to start your research. Libguides provide resources for a course, subject area, or assignment.
If you are still unsure of the best databases to use, contact a Berkeley College librarian via Chat for help.