I found the TED talks to have very good points and help me feel more prepared to engage and advocate. I think that it will still take some soul-searching and reflection in combination with continued learning to feel more comfortable being fully engaged but I now have a better understanding of the path to get there and the ways to participate.
There are so so so many books out there if you need more to help with the soul-searching. Also
The 13th
When they see us
Just Mercy
The Hate U Give
Trevor Noah's George Floyd video
Dave Chappelle's 8:46 video
All of these will give your heart a hug and help you learn more.