Trauma Focused Cognitive Behavioral Therapy (TF-CBT) is an evidence-based therapy that helps children and their caregiver work though and heal traumatic events, specifically sexual abuse.
https://www.psychologytoday.com/us/therapy-types/trauma-focused-cognitive-behavior-therapy

Eye Movement Desensitization and Reprocessing (EMDR) is an evidence-based therapy that helps reduce the negative impact of traumatic events through bi-lateral stimulation.
https://www.emdr-training.net/somatic-attachment-focused-s-f-e-emdr-different/

Play Therapy, a modality of child therapy, is a powerful tool for addressing cognitive, behavioral, and emotional challenges.  Play is a child's first language and it's how children best communicate with others.  Licensed professionals (such as Registered Play Therapists (RPT)) use play therapeutically to help clients better process their experiences and develop more effective strategies for managing their worlds.
https://www.a4pt.org/page/ParentsCornerHomePage