As a psychiatrist, I would recommend that you consider an integrated treatment approach for your client with Complex Post Traumatic Stress Disorder (C-PTSD) which include different modalities and examples. While both Transcranial Magnetic Stimulation (TMS) and neurofeedback can be beneficial in treating C-PTSD, they may be most effective when used in conjunction with other evidence-based therapies.

One alternative treatment that can be used in combination with neurofeedback and EMDR (Eye Movement Desensitization and Reprocessing) is Cognitive Behavioral Therapy (CBT). This can help your client to identify and change negative thought patterns, such as "I am weak" or "I am to blame" and behaviors that are associated with their C-PTSD. Additionally, it can provide them with coping strategies to manage their symptoms, for example teaching them how to handle triggers, relax and practice self-care.

Another approach that can be considered is Somatic Experiencing (SE) which is a body-oriented therapy specifically developed for treating trauma, SE helps individuals to process and resolve traumatic reactions by helping them to focus on their bodily sensations. For example, teach them how to track and release the tension in their body when they feel triggered.

A third alternative is to consider including Mindfulness-based therapies (MBSR or MBCT) which can help your client to develop mindfulness and self-compassion, skills that can be very beneficial in managing C-PTSD symptoms. For example, teaching them how to observe and accept their thoughts and emotions without judgment, and how to respond rather than react to them.

It is also important to note that medication such as antidepressants, antipsychotics, and benzodiazepines can also be used to address the symptoms of C-PTSD. For example, medication can help to manage the symptoms of anxiety, depression and insomnia that often accompany C-PTSD.

It's important to tailor the treatment plan to each individual person's unique needs, preferences, and circumstances. For example, some clients may prefer a more somatic-based approach, while others may prefer a more cognitive-behavioral approach. It's also important to closely monitor the client's progress and make adjustments as necessary.

It's also important to consider collaborating with other healthcare professionals such as a therapist, social worker or other mental health professional as C-PTSD can be complex and debilitating, an interdisciplinary approach can be very beneficial. For example, working with a trauma therapist to help process the traumatic memories and work through the emotions that come with them, while also working with a psychiatrist to address any medical issues that might arise.