For news or research articles, start with multi-disciplinary databases and subject specific databases.
Open Academic Search Ultimate. Select Choose Databases and select MasterFile Premier, PsycArticles and PsychInfo.
A bit further into my research, I have become interested in knowing what scholars are saying about Native Americans living in urban areas.
1. Native American = 29,000 results
2. Add urban areas = 240
3. Limit to Scholarly Journals = 181
For author biographical or literary criticism of works, try the Literature Databases.
Your topic may concern subject areas such as education, health, history, etc. You may consider searching within databases that contain articles that were published in subject-specific journals.