Lolix beat me to it. Camilla is in all honesty probably our best healer (due to Liana being pseudo-nerfed by the lack of her event/UP adjustment to compensate for shift to premium, as well as her niche skill instead of buffing healing output) as she outheals Liana during skill and has way more reasonable UP cost.

Grace is a black, do we really need to go there?

I don't use Fignelia due to having raised Adele, Despara and Yuyu, but seems like a solid unit.