Question about outfit dilemma?

A cami under it would look best. One that has a neckline that falls straight across the chest so it doesn't take away from the top. Avoid scoop or vneck. A black tube top would prolly work. its ok if the straps show but I would make sure the undershirt is low enough in the back that you only see the outer top from the back side and basically just a black triangle in the deep V of the neckline in the front. That would be ideal