Stoutland is pretty good, I think he can work wonderful on a Tailwind-based team, because it's good bulk, good attack, and pretty decent speed (thus, not needing to invest on EV's at all). He had some good use with sand, too, there are some good setters for sand like Probopass, and Stoutland doesn't need of too many turns to actually sweep a whole team with it, he can also work a good cleaner with Tailwind or Sand support, depending of what ability are you using.
On the EBeast set looks good, too, but I could rather use Toxic and Scrappy, Intimidate helps to switch-in, but it's situational at best, while with Scrappy you have almost perfect coverage, just failing at hands of Rock or Steel Pokémon; Steel is rare here, so, it's not a problem at all, while with Rock you can just Toxic them and switch-out. Return is almost as powered as Crunch is with it's SE, so, Scrappy + Return only offers an almost identical coverage. If you're handling Rock-Type Pokémon with other Pokémon already, you can forgoe Toxic and just put Substitute or Protect on it, for extra healing while you're shufling, or for ease prediction and prevent some status on yourself.
Taking in account Fighthing-Type attacks are common on NU, I could rather put a Chople Berry on it's set, because while you're shufling the odds you'll get a Pokémon with Superpower or Close Combat are high, so, a Chople Berry could help you to paralize the faster users, and roar the slowers. Leaftovers heal is great, taking in account you're not having any heal move, but you'll increse the odds of a succesful parashufling with a Chople Berry.