You might find this book interesting, it's about intersectionality in polyamory, particularly as it regards to race, and the authors are both Black and polyam:
How to Avoid Falling in Love with a Jerk. Extremely practical and really great paradigm to absorb before getting into another relationship.
He talks about things like watching how your potential partner treats all types of other people (those they know and respect, people they don’t know, those they don’t respect, are angry at, feel contempt for, and think they are ‘above’). Because at some point in your relationship they will feel that way toward you, and you will have a good indicator of how they will treat you in those instances.
Another is how to know when you know someone, when you can trust, rely on, commit to and be intimate with someone. Truly practical advice that doesn’t get preachy.