In The Science of Equality, Godsil and her co-authors proposed several tactics that seem, based on the research, promising: presenting people with examples that break stereotypes, asking them to think about people of color as individuals rather than as a group, tasking them with taking on first-person perspectives of people of color, and increasing contact between people of different races. All of these interventions appear to reduce subconscious racial biases, while interracial contact appears most promising for reducing racial anxiety more broadly.
Of course, interracial contact can be hard to achieve in communities that are racially homogeneous — in other words, a lot of rural white communities. But the researchers note that even indirect contact — for example, knowing that one of your white neighbors is friends with a person of color — can reduce prejudice, suggesting there are ways to reduce racial anxiety without direct contact.
Godsil and her team also put forward tactics that can help people limit actions based on racial biases, such as getting people to slow down in their decision-making and teaching them about how subconscious processes can influence their impulses — even on issues unrelated to race — in order to push them to question their own objectivity. The research suggests these ideas have potential, but they generally seem to require that people are genuinely willing to reduce their biased behavior and actions. (Source)