There's probably a big enough pie here for everyone to get a slice.Eli Lilly and Novo Nordisk are, so far, the kings of the weight-loss gold rush. Thanks to their medicines, Zepbound and Wegovy, billions in new revenue inflows are assured in the near term.But those two juggernauts aren't the only competitors looking to get a slice of the action -- they're just the first. Three aspiring contenders are raring to go, and they might even be able to claim the crown one day. Let's take a look at each to see if an ...