One of my favorite types of therapy is Internal Family Systems (IFS). It was created by Richard Schwartz, PhD, and is very effective for people who have experienced trauma.
Here are some useful links to find out more information.
These are the books where I learned IFS:
Self-Therapy by Jay Early, PhD
Self-Therapy Workbook by Bonnie Weiss, LCSW
You can get the books from their website Here and Here.
You can get the books from Amazon Here and Here.
They also have many other resources, books, videos, and courses.
The IFS Institute has a website with many resources, such as books, videos, courses, and IFS certification programs.