EFT didn't help me, but I can see that it could be somewhat helpful and I don't see anything wrong with it. My brain kind of rejected it because my brain doesn't like something trying to affect it in that way. It rejected EMDR too. That doesn't worry me because other things are right for me. EFT and EMDR are right for some, not for everyone, that's all.
I don't see EFT as having a big impact on core trauma and effects. I don't see how it could. I would see it as being supportive and helpful with some symptoms, if anything. I think you would still need other approaches to deal with the core issues.
I've had reiki in a different context. I suppose it could help with trauma and its effects, but I think you would need an exceptional reiki therapist and they would really, really need to know what they were doing with regard to trauma.
It makes me nervous because I don't know how likely it is to find someone with enough knowledge and experience. I think there's a serious risk of good intentions going badly wrong when it comes to energy therapies and trauma.
I know a lot about alternative therapies (from using them personally and also I used to work in research in that area). I'm very much in favour of them when they're appropriate. My familiarity with them might make me actually more cautious. I think the risk of opening a Pandora's Box and not being able to deal wih it is high. Which would likely mean retraumatisation and might possibly result in psychosis.
I have to agree with Albatross. Craniosacral therapy really helped me, and is intended for trauma, among other things. With this, or any therapy, you would need to make sure you see someone properly trained and licensed/registered, who knows, understands and can work safely with trauma and PTSD.