I've mentioned them in tandem before, but I think an Oswald and Tony dynamic has a lot of untapped potential.

Tony, whose father went to prison, and Oswald, whose father was replaced by a murderous man in a yellow rabbit costume. Tony, who believes he's too good for his best friend, and Oswald, who lost his best friend due to a factory closure. Tony, who is obsessed with finding answers to the point of committing petty crimes (theft, breaking and entering, hacking), and Oswald, who generally rolls with the punches and is generally more nonconfrontational. Tony, who finds a friend in Greg/ory over his childhood friend Ellis, and Oswald, who ends up befriending Gabrielle after Ben leaves town.

Both have a tie to the motif of evil rabbits and would provide an interesting foil to one another, granted their stories ever linked.