Great Project! Here's a list to work from, with links to Amazon or full downloads in rare occasions. I tried to break it down by subject, and as I've been powering through, I haven't really vetted anything here, so use at your own risk.
General
African American Troops in World War II (Elite) Paperback – November 20, 2007
by Alexander Bielakowski (Author), Raffaele Ruggeri (Illustrator)
Liberators : fighting on two fronts in World War II
by Potter, Lou; Miles, William, 1931-; Rosenblum, Nina
The invisible soldier : the experience of the Black soldier, World War II
by Motley, Mary Penick, 1920-
Buckley, Gail. American Patriots: The Story of Blacks in the Military from the Revolution to Desert Storm. New York, NY: Random House, 2001.
Blacks in the Army Air Forces During World War II By Alan M. Osur - (Full Download)
From Segregation to Desegregation: Blacks in the U.S. Army 1703 - 1954
by Colonel Raymond B. Ansel - (Full Download)
761st Tank Battalion
Brothers in Arms: The Epic Story of the 761st Tank Battalion, WWII's Forgotten Heroes Paperback – May 10, 2005
by Kareem Abdul-Jabbar (Author), Anthony Walton (Author)
The Black Panthers: A Story of Race, War, and Courage―the 761st Tank Battalion in World War II Hardcover – August 8, 2014
by Gina M. DiNicolo (Author)
The Black Panthers at War: The 761st Tank Battalion and General Patton's Drive on Germany Paperback – January 16, 2016
by Gina M. DiNicolo (Author)
The Men that Served with Distinction - The 761st Tank Battalion - Maj Craig A. Trice (Full Download)
Patton's Panthers: The African-American 761st Tank Battalion In World War II Paperback – February 1, 2005
by Charles W. Sasser (Author)
92nd Infantry Division
Buffalo Soldiers: The 92nd Infantry Division and Reinforcements in World War II, 1942-1945 Paperback – February 1, 1991
by Thomas Saint John Arnold (Author)
The 92nd Infantry Division and the Italian Campaign in World War II Paperback – April 9, 2001
by Daniel K. Gibran (Author)
A Fragment of Victory in Italy: The 92nd Infantry Division in WWII (Divisional Series) Hardcover – January 1, 1993
by Col. Paul. Goodman (Author)
October 1942-June 1945 with the 92d Infantry Division - The regimental history.
The Buffalo Saga Paperback – February 18, 2009
by James Harden Daugherty (Author)
Black Warriors: The Buffalo Soldiers of World War II Memories of the Only Negro Infantry Division to Fight in Europe During World War Paperback – March 8, 2011
Buffalo soldiers in Italy : Black Americans in World War II
by Hargrove, Hondon B., 1916-
93rd Infantry Division
Fighting for Hope: African American Troops of the 93rd Infantry Division in World War II and Postwar America (War/Society/Culture) Hardcover – Illustrated, November 24, 2008
by Robert F. Jefferson (Author)
The Fight Near Hill 250 - Warfare History Article - (Full Download)
784th Tank Battalion
The 784th Tank Battalion in World War II: History of an African American Armored Unit in Europe Paperback – August 25, 2015
by Joe Wilson Jr. (Author)
After Action Report, 784th Tank Battalion: January thru May 1945 -
by 784th Tank Battalion
758th Tank Battalion
The 758th Tank Battalion in World War II: The U.S. Army's First All African American Tank Unit Paperback – Illustrated, April 10, 2018
By Joe Wilson Jr. (Author)
320th Barrage Balloon Battalion
Forgotten: The Untold Story of D-Day's Black Heroes, at Home and at War Paperback – November 1, 2016
by Linda Hervieux (Author)