You can’t, because there aren’t any.
I’m really sorry about this. I’m afraid I’ve raised expectations that can’t be satisfied—for now, anyway.
I started writing about “modern Buddhist Tantra” mainly out of intellectual interest. I wanted to show it would be possible—and a good thing. I also had a vague idea that if I made this understood, someone would start teaching it. My hope was that creating demand would somehow conjure supply into existence.