No single search engine or database will have everything you will want to include or review for inclusion in your Annotated Resources Guides. Be prepared to search in a number of different databases in order to cover the ground for both the core or classic academic works and the more recent and emerging research.
Give some thought to the subject disciplines that might have an interest in the topic you are focusing on. That might include more than one of the social sciences, and possibly disciplines from the humanities, natural sciences, or the arts. With these disciplines in mind, you can go to the Library's A-Z Database page and view the available databases by Subject.
A couple of multi-disciplinary databases may prove useful to you for different reasons.