Here is a list of commentaries that can be borrowed at archive.org. Commentaries that are most likely to be useful for expository preaching are marked with an asterisk (*). Commentaries that make use of historical criticism are marked “Critical.” Commentaries that are evangelical and generally avoid historical criticism are marked “Evangelical.”
Hosea
The Eighth Century Prophets : Amos, Hosea, Isaiah, Micah (Proclamation Commentaries) by Anderson, Bernhard W. (1978) (Critical)
Hosea: a commentary (The Old Testament Library) by Mays, James Luther (1969) (Critical)
Hosea : a theological commentary by Ward, James Merrill (1966) (Critical)
*Hosea : a commentary on the book of the Prophet Hosea (Hermeneia) by Wolff, Hans Walter (1974) (Critical) (Technical)
Joel
*Joel and Amos : an introduction and commentary (Tyndale Old Testament Commentaries) by Hubbard, David Allan (1989) (Evangelical)
Hosea, Joel, Amos, Obadiah, Jonah (Layman’s Bible Book Commentary) by Smith, Billy K. (1982)(Critical)
The Books of Joel, Obadiah, Jonah, Nahum, Habakkuk, and Zephaniah (The Cambridge Bible Commentary) by Watts, John D. W. (1975) (Critical)
*Joel and Amos : a commentary on the books of the Prophets Joel and Amos (Hermeneia) by Wolff, Hans Walter (1977) (Critical) (Technical)
Amos
*Amos : a new translation with introduction and commentary by Andersen, Francis I.; Freedman, David Noel (1989) (Critical) (Technical)
The Eighth Century Prophets : Amos, Hosea, Isaiah, Micah (Proclamation Commentaries) by Anderson, Bernhard W. (1978) (Critical)
Amos (Bible Study Commentary) by Garland, D. David (1966) (Evangelical)
*Joel and Amos : an introduction and commentary (Tyndale Old Testament Commentaries) by Hubbard, David Allan (1989) (Evangelical.)
*Amos: a commentary (The Old Testament Library) by Mays, James Luther (1969) (Critical)
Amos : a commentary on the book of Amos (Hermeneia) by Paul, Shalom M. (1991) (Critical) (Technical)
Hosea, Joel, Amos, Obadiah, Jonah (Layman’s Bible Book Commentary) by Smith, Billy K. (1982) (Critical)
*Joel and Amos : a commentary on the books of the Prophets Joel and Amos (Hermeneia) by Wolff, Hans Walter (1977) (Critical) (Technical)
Obadiah
Hosea, Joel, Amos, Obadiah, Jonah (Layman’s Bible Book Commentary) by Smith, Billy K. (1982) (Critical)
The Books of Joel, Obadiah, Jonah, Nahum, Habakkuk, and Zephaniah (The Cambridge Bible Commentary) by Watts, John D. W. (1975) (Critical)
Jonah
Esther, Judith, Tobit, Jonah, Ruth (Old Testament Message) by Craghan, John F. (1982) (Critical)
Hosea, Joel, Amos, Obadiah, Jonah (Layman’s Bible Book Commentary) by Smith, Billy K. (1982) (Critical)
The Books of Joel, Obadiah, Jonah, Nahum, Habakkuk, and Zephaniah (The Cambridge Bible Commentary) by Watts, John D. W. (1975) (Critical)
Micah
The Eighth Century Prophets : Amos, Hosea, Isaiah, Micah (Proclamation Commentaries) by Anderson, Bernhard W. (1978) (Critical)
Micah : a commentary on the book of the Prophet Micah by Hillers, Delbert R. (1984) (Critical) (Technical)
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984) (Critical)
Micah the Prophet by Wolff, Hans Walter (1981) (Critical)
Nahum
*Nahum, Habakkuk, and Zephaniah : an introduction and commentary (Tyndale Old Testament Commentaries) by Baker, David W. (David Weston) (1988) (Evangelical)
Jeremiah 26-52, Habakkuk, Zephaniah, Nahum (Old Testament Message) by Boadt, Lawrence (1982) (Critical)
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984) (Critical)
The Books of Joel, Obadiah, Jonah, Nahum, Habakkuk, and Zephaniah (The Cambridge Bible Commentary) by Watts, John D. W. (1975) (Critical)
Habakkuk
*Nahum, Habakkuk, and Zephaniah : an introduction and commentary (Tyndale Old Testament Commentaries) by Baker, David W. (David Weston) (1988) (Evangelical)
Jeremiah 26-52, Habakkuk, Zephaniah, Nahum (Old Testament Message) by Boadt, Lawrence (1982) (Critical)
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984) (Critical)
The Books of Joel, Obadiah, Jonah, Nahum, Habakkuk, and Zephaniah (The Cambridge Bible Commentary) by Watts, John D. W. (1975) (Critical)
Zephaniah
Nahum, Habakkuk, and Zephaniah : an introduction and commentary (Tyndale Old Testament Commentaries) by Baker, David W. (David Weston) (1988) (Evangelical)
Jeremiah 26-52, Habakkuk, Zephaniah, Nahum (Old Testament Message) by Boadt, Lawrence (1982) (Critical)
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984) (Critical)
*Zephaniah : a commentary (Hermeneia) by Sweeney, Marvin A. (Marvin Alan) (2003) (Critical) (Technical)
The Books of Joel, Obadiah, Jonah, Nahum, Habakkuk, and Zephaniah (The Cambridge Bible Commentary) by Watts, John D. W. (1975) (Critical)
Haggai
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984) (Critical)
The Books of Haggai, Zechariah, and Malachi (The Cambridge Bible Commentary) by Mason, Rex (1977) (Critical)
*Haggai, Zechariah 1-8 : a new translation with introduction and commentary (The Anchor Bible) by Meyers, Carol L.; Meyers, Eric M. (1987) (Critical) (Technical)
Zechariah
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984) (Critical)
The Books of Haggai, Zechariah, and Malachi (The Cambridge Bible Commentary) by Mason, Rex (1977) (Critical)
*Haggai, Zechariah 1-8 : a new translation with introduction and commentary (The Anchor Bible) by Meyers, Carol L.; Meyers, Eric M. (1987) (Critical) (Technical)
Malachi
Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi (Layman’s Bible Book Commentary) by Kelley, Page H. (1984)v(Critical)
The Books of Haggai, Zechariah, and Malachi (The Cambridge Bible Commentary) by Mason, Rex (1977) (Critical)