Social Media
Social media is vast. You will be able find someone with any experience.
tip
See the Social Media page about spreading to learn about the different platforms.
Search
To find posts or videos related to your video focus on hashtags. Start with more general hashtags related to discrimination and then focus in based on common tags you see.
Next steps
If you find some who has valuable experiences that could benefit your movement contact them. Ideally setup and interview and learn more about the issue.