It has recently come to my attention that shamanic circles are needed in a "global" context-- that is, online-- as badly as in actual physical locations. That said, although I currently live in Santa Fe, New Mexico, I invite other interested shamanic practitioners to help me co-create such a circle.
Some years ago, a number of friends and I created a healing circle, with members from all around the world. We called it "Healing Friends," and although most of our requests were for prayers, etc., it worked very well, not only improving the situation for those needing help but also serving as a strong support system for the helpers.
Please reply to this post if you're interested and I will send you my contact information.