I would start with police enforcement and those who work within the mental health area, mental health hospitals, and just hospitals in general, and give them training that not only covers the health of a middle-aged cis white man. Health covers trans bodies and bodies of people of colour. Medically, I know there are a lot of studies that show people of colour have less pain tolerance and handle pain differently than non-people of colour. That is a complete myth, and a lot of their medical research done on that stuff just needs to be updated.
As well, police training needs to be brought in to help deal with the mentally ill, how to actually deal with mentally ill people and people of colour instead of being reactionary. They need to learn how to be proactive instead of reactive, they need more training, and they need to bring in better people to facilitate such training.