Alchemy - I love this! It was on my list a while back as Alchemy Sophia. I still love it. Now I'm thinking about adding it back onto my list!
Bohemia - I adore this, of course!
Celeste - I like this in the right combo.
Galilee - Love this! Another one that used to be on my list.
Gemini - I would love to meet a girl with this name!
Gypsy - I like the sound of this name, but wouldn't use it: it's a derogatory term for the Roma people. The word has bad connotations across Europe and parts of North America (among a few other places) as the people of this name have a reputation of thievery and conning. So I get a bad taste in my mouth when I hear it. 
Henna - I love this! I've considered using it quite a bit, actually!
Lotus - not my favorite, but would make a great middle name.
Luna - really pretty. kind of mysterious-sounding, which I like!
Ouija - nms, sorry!
Salem - I love it, but on boys. I could maybe see it on a girl, though.
Siren - really pretty! I love your Siren Coralie combo! <3
Tarot - not for me, sorry!
Taurus - sounds a little bit masculine to me, but still would be nice, esp as a middle.
Terra - never been for me, I don't know why
Attila - a cool namesake if you ask me, you just have to make sure you're cool with Attila the Hun references every time you say his name. Personally, it wouldn't bother me! He was such a fierce warrior! I like this.
Boheme - I said this before, but I prefer it on girls. It has a light and airy feel to me. But it isn't terrible on boys by any means.
Casper - I prefer Caspar to Casper (though that is partially due to my favorite nickname for it: Spar), but I absolutely love this name!
Jasper - love this, it's an mn on my list 
(Abraham Jasper Keats)
Leo - sounds like a very handsome gentleman name, I love it. It is on my list as an mn (Thomas Leo Shepherd)
Lucifer - not really for me, but I see the appeal.
Osiris - I really like this. I've had a thing for Egyptian names lately. The nn Si is a plus.
Rune - hansome, though I prefer Roan.
Virgo - I like it! kinda old-man hipster vibe.
