this form at the Southern Poverty Law Center. The form is pretty specific--when did the incident take place? Where was it? (Place of work, place of worship, public park?). Even if you haven't seen a hate crime, check out their website. The SPLC has been fighting the good fight since forever and they're out there fighting it now. They have reported 400 incidents of "hateful harassment" since election day. That's 50 a day. That's unacceptable.
They don't just fight hate, they also fight for justice--social justice, economic justice. They're good guys and they could also use donations.