I like…
[name_u]Eden[/name_u]
[name_u]Bellamy[/name_u]
[name_u]Winter[/name_u]
[name_u]Winslow[/name_u]
[name_u]Wren[/name_u]
[name_u]Marlowe[/name_u]
[name_u]Sasha[/name_u]
[name_u]Juniper[/name_u]
[name_u]Harper[/name_u]
[name_u]Cassidy[/name_u]
[name_u]Bryn[/name_u] (my name is [name_f]Brynn[/name_f] as a girl but I prefer it on boys)
[name_f]Briar[/name_f]
[name_u]Arya[/name_u]
[name_u]Ariel[/name_u]
[name_u]Eden[/name_u]
[name_f]Joy[/name_f]
[name_u]Mackenzie[/name_u]
[name_f]Ivy[/name_f]
[name_u]Clare[/name_u] (this spelling works more than [name_f]Claire[/name_f], imo)
[name_u]Taylor[/name_u]
[name_f]Grace[/name_f]
[name_f]Calley[/name_f]
[name_f]Mila[/name_f]
A few of these are repeats, but they are some of my favorite girl names for boys.
[name_u]Kiley[/name_u]
[name_u]Bailey[/name_u]
[name_u]Sage[/name_u]
[name_u]Alexis[/name_u]
[name_u]Avery[/name_u]
My OH is [name_u]Jody[/name_u] and he carries it so well. [name_m]Prior[/name_m] to me, he went by his middle name.
I also know of grown men, [name_f]Jade[/name_f] and [name_u]Stacy[/name_u].
And then names like [name_u]Kelly[/name_u] and [name_u]Casey[/name_u] come to mind.
I didn’t realise before, but I’m quite partial to “modern feminine” names on boys 
A lot of names currently seen as feminine actually started out as boys names, and were swiped by parents of girls.
Several of those include names people have listed in this post
[name_u]Dana[/name_u]
[name_u]Kelly[/name_u]
[name_f]Garnet[/name_f]
[name_u]Casey[/name_u]
[name_u]Alexis[/name_u]
[name_u]Sasha[/name_u] (nickname for [name_m]Alexander[/name_m])
[name_u]Robin[/name_u]
[name_u]Aubrey[/name_u]
[name_u]Avery[/name_u]
[name_u]Stacy[/name_u] (nickname for [name_m]Eustace[/name_m])
[name_u]Bailey[/name_u]
[name_u]Taylor[/name_u]
[name_f]Susan[/name_f]
I’ve heard [name_u]Hayden[/name_u], [name_u]Hadley[/name_u] and [name_u]Harley[/name_u] used on both sexes. Also [name_u]Onyx[/name_u] and [name_f]Kylie[/name_f] or [name_f]Kyley[/name_f].
[name_u]Emerson[/name_u] and [name_u]Remington[/name_u] could be either. Also, I knew a girl named [name_u]Shawn[/name_u]. I think [name_u]Ainsley[/name_u] could be a boy, but I only know it on a girl.