Here are some causes I’ve seen recommended today to help get you started:
Minnesota Black Lives Matter https://secure.actblue.com/donate/ms_blm_homepage_2019
The Official George Floyd Memorial Fund https://www.gofundme.com/f/georgefloyd
Black Visions Donations https://secure.everyaction.com/4omQDAR0oUiUagTu0EG-Ig2
Reclaim the Block https://secure.everyaction.com/zae4prEeKESHBy0MKXTIcQ2