Start with a helpful article or book. Use it to find related resources.

Use the Bibliography

Many databases feature a References tab/page so you can see who they cited.

Library OneSearch has down arrows to connect you to the articles' References

Find sources that cite your source

Library OneSearch uses an up arrow to show sources citing this

Google Scholar also does this

Look for Subject Headings in Databases

These can lead you to other related sources

Find the Author

Look at their personal website or professional CV to see other things they have written