I think they should be mostly rocks over there, there's the aquarium in Genoa if you're interested, I've been there years ago, its very pretty.
For beaches I still suggest looking at the eastern coast, just because I'm more familiar.
Near where I live now there's Senigallia, I know it's very popular, and for like a lifetime I've been at places a bit further north than here near Rimini. All these places have what's called the blue flag which is a thing given to the cleanest beaches.