I... have never seen the appeal of Shelby. Sorry. It has always come across as stereotypically hickish to me, and aside from impressions the sound has always grated in my ears. (I don't like Shelly either, but that B somehow makes it worse.) Of the other names you posted, Saoirse is the only one that I like, to be honest. So... I guess this whole category of names is one I'm not fond of.
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