There are two places through Tenzin Wangyal Rinpoche's Ligmincha Institute where you can study and receive online transmission.
This one: https://www.ligminchalearning.com/
has online courses based on Bon and has a senior student as mentor of the course.
This one: http://www.glidewing.com/twr/soundhealing_rinpoche.html
you have direct contact with and support by Rinpoche and can ask him questions.
There is transmission in both formats.
Also Rinpoche has ustream teaching videos, search for Ligmincha. There are also Youtube videos.
The next live online free full day retreat is in July. The current head of Bon will be participating in part of the online retreat.
More info at Lingmincha.org