The following commentaries are already included in the Aquinas Study Bible:
Catena Aurea (On the Four Gospels), by St. Thomas Aquinas
The Great Commentary of Cornelius À Lapide – on the Four Gospels, 1 & 2 Corinthians, Galatians, and 1, 2 & 3 John. Although Cornelius À Lapide wrote commentaries for the whole Bible (except the Book of Job), only the above cited are in English; the rest are still in Latin.
The NAVARRE New Testament Bible Commentary has received many good reviews, but is not yet available online.
The following are additional commentaries not yet included in the Aquinas Study Bible:
A Commentary on the Book of Psalms, by St. Robert Bellarmine
Commentary on Matthew by Rev. A. J. Maa
Commentary on St. Luke, by St. Cyril of Alexandria
Commentary on St. John, by St. Cyril of Alexandria
An Exposition of the Four Gospels by Macevilly
An Exposition of the Acts of the Apostles by Macevilly