Here is an incomplete list of resources that you might be able to use for yourself, share with others, donate to, join forces with, etc..
The Coalition to Stop Gun Violence
Families USA
Florida LGBTQ+ Substance Abuse & Mental Health Resources
National Alliance on Mental Illness
National Suicide Prevention Lifeline
Nursing Home Abuse
Oxfam
Recovery Dharma
Police Brutality Center
* Feel free to submit a resource for review. If it's legit it can be added to the list. Others have done this.