Look for interventions at different organizational levels.​

PubMed and CINAHL have indexing for certain groups.  

PubMed examples

• American Native Continental Ancestry Group  [MeSH]
• Family or Kinship Networks [MeSH]
• Nonprofit Organizations [MeSH]
• Industry [MeSH]
• Faith-based OR "faith community" OR "church based" [keywords]

CINAHL examples

• Native Americans [CINAHL Heading]
• Family [CINAHL Heading]
• Nonprofit Organizations [CINAHL Heading]
• Business [CINAHL Heading]
• Churches [CINAHL Heading]