The Red Rising Series (my personal favorite sci-fi series)

The Furies are all black
Atlantia (>! Likely one of the BBEG of the second series!<)

Moira (the least important one by far)

Aja (arguably the single most badass fighter in the entire series)

Ajax (Aja's son) is also black

Also, their father, The Ash Lord is also black.

All the characters (except Moira, RIP) are extremely important characters.

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Binti (A Hugo & Nebula award winner)

Main character is African

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Murderbot Diaries (2 Hugo/Nebula winners, a single Hugo, 3 rejected hugo nominations, and a Hugo for best Series)

While racial terms aren't used at all, skin color descriptions vary significantly to encompass what is likely a wide range of lineages.