I am about to embark on nutritional rebalancing, which I have heard really great things about, and I had some great success with RBTI, (but needed to stop it as I don't think it is the right path for me long term for various reasons).
You don't have to have metal toxicity for nutritional rebalancing to be effective. I believe what is at the basis of both that and RBTI is making sure your body has all the minerals it needs to heal and function properly, and I think there is a lot of validity to that theory. Just sayin'.
I can't recommend any ND's but I know some people on here LOVE theirs so I am sure someone will have a name for you.