Perhaps the better advice to the potential readers of such a tome would be to ignore the "well-intentioned" white woman and instead take some time and patience to read some African American voices, Ibram X. Kendi's Stamped from the Beginning or The African-American Experience edited by Kai Wright.
If you really insist on getting help from someone white to start off on your journey, then I can only recommend John Biewen's excellent Seeing White podcast series, though both John and the series are "kept honest" by recurring guest Chenjerai Kumanyika and a variety of other great guests and interviewees.