Some excellent books introducing the landscape of trauma held within the body:
Your body keeps the score – Bessel van der Kolk
Waking the tiger – Peter A. Levine
Trauma and Memory: Brain and Body in a Search for the Living past – Peter A. Levine
When the Body Says No: The Cost of hidden stress – Gabor Mate
Sensing Feeling and Action – Bonnie Bainbridge Cohen
Women who Run With the Wolves – Clarissa Pinkola Estés
Trauma and the Body, A sensorimotor approach to Psychotherapy – Several authors
Daring Greatly: How the Courage to be Vulnerable Transforms … – Brené Brown
Organisations who work with somatic trauma:
Association for Dance Movement Psycotherapy