Reading some of these is a great place to start. I would recommend that people go back to some primary sources -- Anything by James Baldwin is still powerful and relevant. I would recommend The Fire Next Time.

Required reading is still MLK's letter from the Birmingham Jail.

Also: It would be a big step forward to actually engage in conversations with people of all different colors and persuasions. Many inter-faith and other community groups were doing this before the virus. Now you can do it outside.