I recently did an interview with Bob Murphy on our attempted resolutions the mind-body problem. You might enjoy it.
Years ago, I wrote an article explaining my own theory of indirect interaction. For some silly reason, I never created any visuals to go along with the article, though they would have helped immensely. So that was corrected in this interview, around the 43:30 mark.
This theory is extremely flexible. If allows for interaction between multiple ontological categories—not just mind and body. If your ontology includes mind, body, spirits, numbers, abstractions, or more categories, it provides a plausible mechanism for interaction across them all.
If you want two-way interaction, it allows for that. If you only want one-way, that’s fine too. If you want free will, there’s a spot for it. If you want an intuitive causal mechanism for spiritual phenomena like prayer, here’s how it could work. Or, you can be a hardcore determinist epiphenomenalist. It’s a powerful model indeed.