You can also check out these similar threads for more ideas
https://forum.nameberry.com/t/what-are-your-favorite-girls-names-for-boys/340326?u=kailun
https://forum.nameberry.com/t/feminine-boy-names/344148?u=kailun
Feminine and unisex names that I like on boys are Lorelei, Isobel, Avalon, Ireland, Sky, Alair, Bellamy, Jade, Florence, Laurel, Fern, Skylar, Kai, Kit, Artemis, Arwyn, Anwen, Olwyn, Eowyn, Tauriel, Ariel, Atlantis, Hazel, Lotus, Willow, Larkspur, Lark, Nightingale, Raven, Dove, Peregrine, Sparrow, Robin, Falcon, Valentine, Emery/Emory/Emerson, Lou (nn for Lucian/Lucius), Winter, Cove, Ocean, Rain, River, Storm, Indigo, Ridley, Riley, Rey, Rowan, Rory, Mika, Denali, Yukon, Alpine, Eden, Denver, Paris, London, Dakota, Eve, Quinn, Sage, Juniper, Blue, Ember, Onyx, Kingsley, Augustine, Beau, Basil, Cyprus, Wren, Aubrey, Asa, Bailey, Taylor, Shiloh,