Echoing the love for Susanna (particularly without the h). It’s on my long list for my current pregnancy.
I like Shoshana and, as a person with Jewish heritage, could maybe get away with using it but I don’t think I would. Not because I necessarily think it should be off limits to anyone Jewish or otherwise, but just because I would feel like I was “going for” something rather than naming my child authentically—if such a thing is possible.