Ida Frances is decidedly adorable, and on trend for vintage-lovers.
I would personally go with a bit more flair like
Ida Magnolia or
Ida Wilhelmine or even
Ida Theophania.
Ida Marian is also kind've sweet. I had initially thought
Ida Marie would be simple and darling, but
Marian one ups it I think.
Iva is pretty, and looks better on paper than
Ida.
Iva would be far more on sound-trend than
Ida right now. I would pair it as
Iva Simone.