Great post, Elizabeth.
Have you looked at Dr. Davidson's Center for Mental Health? https://centerhealthyminds.org
At the center, they've been working on this kind of research for dacades: "Faced with mental and physical health challenges at a global scale, we conduct rigorous scientific research to bring new insights and tools aimed at improving the well-being of people of all backgrounds and ages."
Also, Dr. Davidson's recent book ("Altered Traits, Science Reveals How Meditation Changes Your Mind, Brain, and Body", coauthored with Daniel Goleman) seriously tackles meditation from the research-based perspective.