Temporary Lauma Replacement for Nefer Team

I am looking for a temporary Lauma replacement for my Nefer team. I will be pulling for Columbina and am planning to ger C1 Lauma in the future to be the team's healer.

When Columbina's banner drops, I will be running

Nefer - Night of the Sky's Unveiling Columbina - (Silken Moon's Senerade/Aubade of Morningstar and Moon, currently unsure with which artifact runs best with her and this team) Nahida - Deepwood Memories (4th slot)

Any recommendations and team builds would be appreciated. I would also love to hear your thoughts on which 4-star weapon would be greatforh Columbina in general.