Rape Crisis England has an abundance of helpful resources, including a 24 hour support line (0808 500 2222), help for men and boys and support for children and young people.
The NHS website provides advice on what to do if you have been recently assaulted, how to find your nearest sexual assault referral centre (SARC) and more.
Women's Aid provides help for victims of domestic abuse including a help line (0808 2000 247), a forum for survivors and how to help children.
NSPCC has information and guidance on child sexual abuse or signs of possible abuse.