FamilySearch publishes an index to their holdings of online African American online genealogy records.
African American Online Genealogy Records, FamilySearch, May 5, 2023, accessed September 25, 2023
[From the preface to the records listing:]
These are genealogy links to African American online databases and indexes that may include birth records, marriage records, death records, biographies, cemeteries, censuses, histories, immigration records, land records, military records, newspapers, obituaries, or probate records. Some subscription websites listed below can be searched for free at a FamilySearch center or FamilySearch affiliate library.