As a RH, how do I find narrators who work in dual or duet narration?

My work is in the romance genre, with erotica sprinkled in, and ideally I would like a dual narration, or even a duet narration if possible. My project is still in the review phase so it's not yet live, but I am thinking ahead and I'm worried this might not even be possible through ACX as I'm not looking to assign one narrator as the producer and then pay the second one outside of the platform.

Is there an easy way to find if a narrator already has a partner that they work with and are comfortable sharing payment? Or do I have to reach out to any potential narrator who auditions (or who I come across) and ask?