There are Black Deaf experts at NTID--there are many more than what I listed here, but it is a start and you can contact them to get more information about other Black Deaf people.
Joseph Hill--he has gathered many Black Deaf resources on his website. Check it out! He is also involved with Black ASL studies. Check out the Facebook Black ASL page.
Alesia Allen--she is the NTID Diversity and Inclusion director. Check out the website!
Check out the Black Deaf Center and Black Deaf Culture Through the Lens of Deaf History. Other information that may be of interest is the 2019 report with data re: Black Deaf Students' achievement in postsecondary schools. Also, there is a recent article from Inside Higher Education, "Building Up the Black Deaf Student Community".
This information is from the website of the National Black Deaf Advocates and is a great start to learning more about Black Deaf people and their unique culture.