As hinted in the Discord I do in fact want to thread everyone with Nell, so consider this my valiant effort to connect literally every character with her:

Getting the obvious out of the way: hurling. Guys in her age range are my specialty. It'd be faster to list the people I wouldn't hurl her with. I have people in the marriage market, people for emotional affairs, and people for no strings sex.

Ford in Spirit Division or Victor Daphnel the recently deceased are available for death pestering. Victor would be significantly less accommodating of curiosity (and therefore make for a better thread probably!)

Specifically of interest, perhaps: Ben Crouch also spent a good long while traveling, also worked with magical creatures for a few years and is generally good with animals, and is full of vague traumas that can make interactions more fun.