There are too many dead openly/suspected racist wrestlers to list, so I'll skip them. As far as living racist wrestlers, just off the top of my head, I can name:
Tessa Blanchard,
Ric Flair,
Hulk Hogan,
HHH,
MJF,
Madi Wresnkowski,
Vince McMahon,
Tiffany Stratton,
Shawn Michaels,
Michael Hayes,
Shad Khan*,
Drake Wuertz,
Lars Sullivan,
Sean Morley,
Jessicka Havok,
Excalibur,
Jim Cornette,
Brian Cage
There are receipts online for all of the wrestlers that I listed. I'll try to circle back and post some when I finish work.
Also, I know I've missed a bunch of living racists, especially since my list is focused solely on North American wrestlers.
*Not wrestling related, but Shad Khan did face accusations of racist & unfair practices from some Black employees of his now-defunct Black News Network company.