If you really want to study His Holiness Dudjom Rinpoche's New Treasures, you don't need to satisfy yourself with imitations, inventions, or downright bullshit from people who never even met His Holiness. Instead, here are three suggestions:
(1) Shenphen Dawa Norbu Rinpoche. He has centers in New York, Denver, France, Spain, and Switzerland.
(2) Thinley Norbu Rinpoche. People always complain that he is difficult to find, and constantly write in, asking for his address. If he wanted his address known, he would publish it himself. Nevertheless, he is easy to find if you have any sort of connection with him. Here is a hint: Delhi isn't always where it seems.
(3) Lama Tharchin Rinpoche. He lives in California, and often travels on request. If you are on the Left Coast, this is your best resource.
There are other possibilities, but these three should be enough to get you started in the right direction.
Be very wary of watered-down centers or dual operations where half the people are off on one tangent, and the other half are off on another.