Balfour was a politican who also wrote some on philosophy and on religious matters. In this work he examines the foundations of belief, and looks at it from a comparacion with naturalism, and then some reasons and then some causes of belief, and a (philosophical) foundation for belief.
Charles Hodge’s great systematic theology work is a well known Reformed/Calvinist theology. It is extensive.
Miley Systematic Theology covers an introduction to Theology, Theism, Theology, Anthropology, Christology, Soteriology, Eschatology, and appendices on Inspiration, Angels, and the Arminian Treatment of Original Sin.
This is a 162 chapter work on Theology with sections on Bibliology, Theology Proper (God), Pneumatology (Holy Spirit), Soteriology (Salvation), Angelology, Anthropology, Harmartiology (Sin), Ecclesiology (Church), Christology,