Remniche is a good starting point if your character isn't in the middle of a journey. My intro post should have hopefully described what the city is like. It'd also be good to form two or three separate search parties and do different things in Vivi-Dream rather than bunching everyone together into one. The objective behind any search, however, is to find an artifact and solve a mystery before the location's influence can potentially corrupt Vivi-Dream entirely. The mystery can involve one of your characters, or of Vivi-Dream itself. I'm not concerned with which at this time.