Now that you have collected some good basic background information about your topic, you can search for more detailed and in-depth research in articles. As opposed to books and encyclopedias, articles will be on more specific aspects of a topic (i.e., more specific aspects of a culture), and have much more in-depth research and analysis.
For example, below you can see a part of the reference entry for reggae in the Sage International Encyclopedia of Music and Culture. From this short entry, we learn a little more about this topic and can gather keywords that we can then take into article databases, such as:
- Rastafarianism - the religious tradition associated with this culture
- specific symbols and aspects of this culture, like dreadlocks and marijuana
- lower-class urban Afro-Jamaican communities - the community associated with the roots of this culture

Bindler, E. (2019). Reggae. In J. Sturman (Ed.), The SAGE international encyclopedia of music and culture (Vol. 1, pp. 1801-1802). SAGE Publications, Inc., https://www.doi.org/10.4135/9781483317731.n599