I'd love to get a male to fill this line - They meet during a protest - she's young and full of passion and hatred towards the inequality and injustices within the world. He's older, more bitter and cynical, but no less passionate about the cause. She admires his commitment and looks up to him. He takes the opportunity to nurture her passion and keep her fighting for the cause.
I'd be quite interested in taking this line quite dark with him encouraging her into direct action - violence, anarchy and destruction rather than the peaceful protests she's formally been involved in.
Otherwise another protester to write against her would be amazing or really anything where she can be her loud mouthed, angry feminist self. Lesser played PBs a huge bonus. Open to various kinks.