Have you tried Serials A2Z? Serials A2Z is a fantastic database of all of our full text electronic journals.
This is a great place to find journals we don’t hold hard copies of. You can either search for titles or browse via pre-selected categories. Once a title is selected you are taken to the vendor website (EBSCO, Gale etc.) where you get information about the availability of articles. Information about embargoes and back issues is contained here too.