CSM's E-Journal Finder is a great tool for finding specific journals OR for browsing by subject.
Under each journal, use the entries for a direct link to the journal in that database. The date range is especially useful if you are looking for a specific article (where you know the publication date) or need articles that were published in a certain time frame ("last 5 years", "before 1975", etc.).
Hitting a paywall? Don't buy articles!
If you find an article online but can’t access the full text, you can check to the E-Journal Finder to see if it is available through the library databases, search in Google Scholar, or request a copy of the article through Interlibrary Loan.