Hi HN,
I created this cheat sheet and video as high-level guidance to the major categories of ML explainability research and techniques. It's an area I've been working in the last year and this is how I synthesized the lay of the land in my head based on excellent references listed in the page. I hope you find it useful. It's non-exhaustive and will be updated, so please let me know if you have any feedback for future revisions. Thanks!