#3 Lead a babyface stable
The Shield no longer exists with the departure of Dean Ambrose from WWE, and there's a huge void to fill as WWE has very few dominant stables currently.
One way WWE can get Roman Reigns over with the fans is for Reigns to lead a babyface stable. The likes of Finn Balor, Hardy Boyz, Kevin Owens and The New Day are loved by the WWE Universe, and a stable involving a few of these Superstars with Reigns could, in the long run, get The Big Dog back in the favour of fans.
We could perhaps see Reigns help the others in the stable win titles, putting them ahead of himself which would please fans as the one gripe they have had with Reigns' lately is that WWE have tried to push him down the throats of WWE fans.