PsycInfo is THE database for starting research on mental health related topics. The coverage includes over 1,300 journals in 27 languages from approximately 50 countries. If you have a topic related to psychology, you can probably find articles that address the subject.
This database provides a rich collection of videos that include filmed footage of actual therapy sessions, re-enacted therapy sessions, and scripted sessions designed by counseling professionals to illustrate common issues and scenarios that arise during courses of therapy. The videos cover such topics as mindfulness, trust, optimism, and happiness as well subjects like isolation, stress, and anxiety.