Definitions of Doctrine is a basic doctrines book in three volumes. Vol 1 has 26 chapters dealing with the doctrine of God. Vol. 2 has 27 chapters on Sin, Salvation, and Service. Volume three has 27 chapters on the Church.
Abstract of Systematic Theology is a 21 chapter work (short chapters) by Boyce (Baptist) that has a few half dozen questions in each section
Bible Doctrine of Election by CD Cole (Reformed) is a work defended the Reformed position of election. It is divided into two parts, first is a defense of the Doctrine of Election, and the second is letters to and from Dr. Cole.
Mastering the Bible by Mark Cambron is a tremendous work on Hermeneutics going through many principles used in order to correctly interpreting the Word of God, such as the principle of first mention, the principle of types, the principle of double reference, etc.
Dagg’s Work, Manual of Theology is a full fledged systematic theology from a Reformed perspective. He was Baptist.
Dr. Luginbill’s work, Angelology, the Study of Angels, is a single chapter work on Angels. Although brief, it is quite well documented on the specifics of the doctrine of angels.