Here are some individuals and organizations aimed at specific marginalized groups that could provide further resources to people. Please note that these are all based in the USA.
Run by illustrator Abelle Hayford, this is a massive list of Black artists divided into specializations. Sounds like the plan is to turn this Google spreadsheet into a full site in the future. In the mean time, forward this list to your studio’s recruiters so they can stop using bullshit excuses.