Bibles
JPS Hebrew-English Tanakh, 2nd Edition, JPS, 2003
The Jewish Study Bible, Adele Berlin and Marc Zvi Brettler, editors, 2nd Edition, Oxford University Press, 2014 (with JPS translation of Tanakh)
The New Oxford Annotated Bible with the Apocrypa, 5th Edition, Oxford University Press, 2018 (NRSV translation)
The Harper Collins Study Bible, Revised, HarperOne, 2006 (NRSV translation)
Robert Alter, The Hebrew Bible, a translation with commentary, Norton, 2019
Five Scrolls and Related
Da'at Mikra: Chamesh Megillot, Mossad HaRav Kook, Jerusalem, 1973 (Hebrew)
Five Megilloth and Jonah. With introductions by H. L. Ginsberg. JPS, 1974
Elias Bickerman, Four Strange Books of the Bible: Jonah, Daniel, Koheleth, Esther, Schoken, 1967
Rashi, Commentaries
Abraham ibn Ezra, Commentaries (for example: https://www.sefaria.org/Ibn_Ezra_on_Esther?tab=contents)
Malbim, Commentaries (for example:
https://www.sefaria.org/Malbim_on_Ruth?tab=contents)
Ecclesiastes / Kohelet
James L. Crenshaw, Ecclesiastes, Westminster, 1987
Choon-Leong Seow, The Anchor Bible: Ecclesiastes, 1997
Esther
Carey A. Moore, The Anchor Bible: Esther, Doubleday, 1971
Mary Joan Winn Leith, Commentary to Esther (and Commentary to Esther (The Greek Version Containing Additional Chapters) in the Apocrypha section), Oxford Study Bible
Adele Berlin, Commentary to Esther, Jewish Study Bible
Amos Hakham, Commentary to Esther, Da'at Mikra, Chamesh Megillot (Hebrew)
Jonah
Jack M. Sasson, The Anchor Bible: Jonah, Doubleday, 1990
Lamentations
Delbert R. Hillers, The Anchor Bible: Lamentations, Doubleday, 1972
Ruth
Tamara Cohn Eskenazi and Tikva Frymer-Kensky, The JPS Bible Commentary: Ruth, JPS, 2011
Song of Songs
Michael Fishbane, The JPS Bible Commentary: Song of Songs, JPS, 2015
Reference
John Bright, A History of Israel, Third Edition, Westminster Press, 1981 (A history of Biblical Israel)
H. H. Ben-Sasson, ed. A History of the Jewish People, Cambridge, MA: Harvard University Press, 1976
John H. Hayes, An Introduction to Old Testament Study, Abingdon, 1979