I like gender neutral names but I almost always have a preference. And if you don't like them or have a preference I don't think you need to force yourself to like any, it's just a personal preference.
River - okay for both but very much prefer for a boy.
Hazel - super feminine to me.
Autumn - super feminine to me.
August - very masculine to me.
Logan - very masculine to me.
Morgan - unisex to me but prefer for a girl.
Jordan - unisex, slightly prefer for a boy.
Harper - very girly to me.
Brooke - girly, but
Brook works for both.
Noël - this is strictly masculine,
Noëlle is feminine.
Isidore - masculine to me.
Chandler - masculine.
Jules - boy, unless nickname.
Valentine - both but very very much prefer on a girl
Nikollë - I can see that it is Albanian, but to be honest I thought "what a terrible misspelling of
Nicole", sorry!
My suggestions:
Rivers - the S makes it more unisex, in my opinion, I could see this on both.
Rain - I know a boy named this but he spells it Rayne. I get more of a feminine image but it does work on both.
Shea - prefer on boy but works on both.
Ash - this is more masculine to me but works.
Rowan - I prefer it on a boy but this is one of THE unisex names for me in the sense that it works really well on everyone.
Quinn - works well.
Lake
The most completely unisex sounding ones to me personally are:
Rowan,
Quinn, Rivers,
Morgan,
Jordan,
Rain.
Please rate my list:
https://www.behindthename.com/pnl/6232