Yeah, I am starting a FemRobin playthrough and I have no idea who the heck I am going to pair Lucina with. I mean, I have to pair her with someone of course, her non-paired ending is really depressing after all.
Gerome is out of the question, I don't really like him and Lucina as a couple (I prefer them as friends, and I like Gerome with Cynthia anyways). So that leaves Laurent, Inigo, Bradly, and Yarne. Hmmm, I heard some poeple mention her supports with Laurent are good, I could try that I guess.