As you seek to find the connected resources to the most important / influential research on your topic, you can use these library databases to engage in cited reference searching.
Cited reference searching can involve reviewing an article or other resource's references for connected / related research, but these tools help you to review what subsequent resources (articles, but also books, book chapters, dissertations, conference proceedings, etc.) have cited specific research.
Here is information about where to find what resources cite an article in Google Scholar.
Here are instructions on how to use the Cited Reference Search in Web of Science.
If you find a particularly useful article, you can sign up for alerts from both Google Scholar and Web of Science so that you're notified whenever that article is cited
Here are instructions on how to: