Andrew Gillum - the Current Mayor of Tallahassee, FL, has won his Primary to become the First African-American Governor of Florida.

https://andrewgillum.com/

Stacey Abrams - the former Minority Leader of the Georgia House of Representatives, is vying to become the First African-American Governor of Georgia.

https://staceyabrams.com/meet-stacey/

Ben Jealous - former President of the NAACP, is vying to become Maryland's First African-American Governor.

https://benjealous.com/

Garlin Gilchrist II - current executive director of the Center for Social Media Responsibility at the University of Michigan, former Candidate for Detroit City Clerk, former political organizer for the left-wing MoveOn.org and managed social media for Barack Obama's first presidential campaign, is vying to become the First African-American Lt. Governor of Michigan.

https://www.freep.com/story/news/politics/2018/08/20/garlin-gilchrist-gretchen-whitmer-running-mate/1040401002/
https://www.si.umich.edu/research/center-social-media-responsibility/csmr-leadership