What is the most Roman faction?

[Nameless Warrior]

I am a Roman character and have taken the quest to take back Londinium but that is far in the future. My next step is to join a mercenary company for a faction to keep my wages paid and get into good loot fights.

I am wondering which faction or factions are the most Roman or at least Roman sympathetic?

 

[Lord Arius]

The south britons kingdoms are the most Roman factions, I think.

However, long ago that these people were no longer Roman...