Do you want to grow in your understanding of the Trinity? Are you willing to put in some work?
If so, this blog post from Mark Jones over at Calvinist International is a doctrinal gold mine.
It’s in two parts. Part one is a series of propositions. Part two is a series of questions for another theologian, Fred Sanders.
You could take one proposition at a time and spend a set amount of time reading up on each doctrine addressed. It would certainly prove an edifying exercise.