In a fanfiction with godlike Naruto in Rias' peerage, Naruto would likely be a dominant force. His godlike status might mean he has even more enhanced versions of his usual powers. He could potentially teach the other members of the peerage some of his ninja ways, like stealth and quick movement. And in battles, he could turn the tide easily with his overwhelming strength.
A fanfiction with godlike Naruto in Rias' peerage would open up a world of possibilities. Naruto's strong sense of justice would blend well with the goals of the peerage. His ability to form bonds quickly would also affect the relationships within the group. Maybe he would introduce new forms of combat training, and his presence would attract more attention from both allies and enemies, making the story full of action - packed adventures and political intrigue as different factions react to this new and powerful addition to Rias' peerage.