If you still want Wangji to hover over Wrathion while he attempts to break his curse we could potentially vaguely combo one of these things. He'll probably be lurking the burial grounds in the evenings and late at night especially getting slightly eaten by the loneliness side of his curse, but potentially going to and from them a bit during the day. Either Wangji chasing down a magpie that drops its stolen prize on Wrathion while he hangs around being a weird dragon equivalent of a church grim, potentially trying to protect the things he just put out from birds. Or maybe Wangji can be walking his foxes or searching for something to feed them and think Wrathion's haunting the place until he works who he is? Or something other option!