These online databases will identify the journal article literature in specific subject areas. Some databases will also describe books and book chapters. Some databases -- APA PsycInfo, ERIC, and MEDLINE, for example -- have excellent subject term thesauruses that help to streamline searching. Most of these databases provide links to fulltext, either through URLs, DOIs, or PennText.
All library research is two things : Identifying what you want to read, and Locating what you identified. Here are some recommendations for locating what you identified.
These brief Penn Libraries videostreams give tactics for locating fulltext - covering paywalled ejournal pages, in-text citations, and DOIs and URLs. Some of the videostreams show a superseded version of the Penn Libraries catalog and its Articles+ integration, but the tactics will work with the new Penn Libraries catalog and its Articles+ integration. NOTE! You may need to use your PennKey to sign into the Penn Libraries mediaspace.
Databases covering sociology, social work, and their subfields may be useful for identifying programs addressing groups of people.