Six Excellent Church History Sources

 1. Jaroslav Pelikan, The Christian Tradition, Five Volumes (The University of Chigago Press).

See https://press.uchicago.edu/ucp/books/series/CT.html

2. Everett Ferguson, Church History, Two Volumes (Zondervan)

See https://zondervanacademic.com/products/church-history-volume-one-from-christ-to-the-pre-reformation

3. W.H.C. Frend, The Rise of Christianity (Fortress Press)

SEe https://www.augsburgfortress.org/store/product/9780800619312/The-Rise-of-Christianity

4. R.P.C. Hanson,The Search for the Christian Doctrine of God: The Arian Controversy, 318-381 (T & T Clark)

See https://www.amazon.com/Search-Christian-Doctrine-God-Controversy/dp/080103146X

5. Edmund Fortman, The Triune God (Wipf and Stock)

See https://www.amazon.com/Triune-God-Historical-Doctrine-Trinity/dp/1579102239/ref=sr_1_1?dchild=1&keywords=edmund+fortman+trinity&qid=1629060655&s=books&sr=1-1

6. Harold O. J. Brown, Heresies: Heresy and Orthodoxy in the History of the Church (Hendrickson)

See https://www.amazon.com/gp/product/1565633652/ref=as_li_ss_tl?ie=UTF8&tag=ligoniminist-20&linkCode=as2&camp=217145&creative=399369&creativeASIN=1565633652

Too many great works to mention: these six are just the tip of the iceberg.