BU, this may be of interest to you, though it doesn't mention intellectual attraction which seems like a rather glaring omission now that you've brought it up:
Me, 30ish bi female, been doing solo poly for roughly 5 years. Gia, Clay, and Pike, my partners. Davis, ex/friend/"it's complicated." Eric, Gia's husband. Bee, Gia and Eric's toddler.