Librarians, especially in colleges and universities, create subject guides to aid students researching complex topics. Here are some examples - I haven't had time to check them yet. These came up in the first 10-15 links in DuckDuckGo. Some may be more useful than others. - SK 12/15/22
- ASPE - Office of Assistant Secretary for Planning and Evaluation (US HHS) - Homelessness
- Auraria Library (Denver)- Research about Homelessness
- Broward College - Homelessness
- Columbia University - Homelessness Research: A Guide for Economists (and Friends)
- DePaul University Research Guide on Homelessness
- Georgetown Law Library - Poverty Law Research Guide
- Green River College - Homelessness and Hunger Research Guide
- Modesto Junior College - Homelessness in America
- Portland State University (OR) - Homelessness Research
- SAMHSA (Substance Abuse Mental Health) National Research Agenda
- USC Libraries - Homelessness Research Resources
- U Wisconsin - Madison - Homelessness - Social Issues: An Undergraduate Research Guide