Boys:
Braedon: Not too keen on this one any more.- Me either. I find the spelling unappealing as well as the combined overuse of Ayden/Jayden/Raiden/Kayden/Brayden.
Carson- Cute! A little on the dated side, but a cute name for a little boy.
Caleb- Lovely, and a modern classic.
Calvin- Calvin doesn't really fit with the above names style-wise, but I love it! Cal is also a sweet nickname.
Damon- Nah. Looks kind of made up or like an alternative spelling of Damien.
Damien- Sweet! A softer boy name that feels similar to some of your other favorites.
Elijah- Ooooh, Elijah! Although I would never put this one on my list, I can't deny that it's darling.
Felix- I want to like Felix, but it remains a cat name for me. If you can get over that, though, it's a really sweet name.
Harry- Eh, I'm more into Henry. Hairy sounds exactly like Harry, at least in my accent, so I have a hard time getting on board.
Isaiah- Another cute one! Isaiah and Elijah could be really adorable siblings, and Isaiah fits with the nickname-proof nature of most of your other names.
Jace- Kind of a halfway point between dated Jason and modern Ace, and I have to admit, it's not my favorite.
Jaxon- I honestly don't see the appeal of the Jackson/Jaxxon/Jaxxyn thing. Sorry!
Kayden- See Braedon, although I do slightly prefer Kayden.
Louis- Lewis or Louie? I think both are very charming, but don't really fit with the majority of your other choices.
Luke/Lucas- Darling! I prefer Luke, but both have such a lovely crisp sound that I really love.
Michael- A strong classic. I can definitely see the appeal here.
Mitchell- Not really my thing. Michael feels classic while Mitchell feels dated.
Quinn- Here's the thing: I adore this name for boys, not to the point were I would ever use it, but still, I quite like it. However, it's attracting sooo mannny giirlllls. And unfortunately, with gender stereotypes and all, qualities associated with boys and their names are cool on girls, but "feminine" qualities and names are lame for boys.
Simon- Ooooh. A perfect sibling for Harry. Very Simon Cowell, which may or may not bother you depending on where you live, but overall a handsome and underused choice.
Trevor: has since been taken off my list- I would agree with that. A little lackluster and dated.
Xander- Hmmm. I can sort of see why people like it, but it feels overused and tired to me.
Girls:
Arabella- Very frilly, which isn't my thing, but also a great mix of appealing sounds.
Brooklyn- I can't tell you how much I personally dislike this name, but it can work for a lot of other people!
Danielle- A little on the dated side, sure, but still a fluid and beautiful name.
Ella- I used to really hate this name, but it's kind of growing on me. I still am not a fan of Ellie, but Ella is traditional with a more contemporary twist.
Emma- A pretty nice (but extremely popular) British literary name that fits well with the names above.
Evelyn- She's popular, but oh is she pretty! I strongly dislike most names ending in Lyn, but Evelyn is a strong exception. So beautiful.
Harley- The past names I've reviewed have been feminine to the max, and mostly very classic, so modern surname Harley doesn't really match up for me. However, Harley is a nice enough name!
Isabella- Funny how it's so popular and I've never met one in my entire life. Sweet, more established than Arabella, and fits well with the others.
Jayla- This sounds very made-up and lackluster for me. A twist on Kayla, but I would stick with the original unless it has special meaning to you.
Kaylee- There are a lot of variations of this name, to the point where I consider it the female Aiden craze.
Lilly- I think it looks more elegant with one L, Lily, but I think it's sweet either way. Lovely!
Lexi- I would want a longer form, maybe Alexa or even Alexandra? I just think that Lexi feels very limited as a first name.
Mikayla- Not my style. I think that Mikayla is a tad too dated.
Oaklynn- I'm sorry, I just really dislike Lynn names, so this wouldn't be high on my own list.
Sapphire- A lil stripper-esque.
Sienna- Very pretty. Sweet and feminine without being frilly, and not super popular either.
Sierra- I prefer Sierra slightly over Sienna, because Sierra feels a little but more fluid and flowy.
Teagan- I think that the Tea sound is quite nice, and while the surname style isn't quite mine, I'm pretty fond of Teagan.
Taytum- Tatum looks a little better to me. Overall, not my favorite of your selections.
Vivienne- Oooh, pretty! I love the French spelling too. Vivienne has always been in my style vein, but she just doesn't hold as much magic as I would hope. However, she may sparkle for you!
Either:
Ashton- I find this hard to say. I don't know if it's just me, but I do. Despite that, I would suggest it on a boy.
Alex- Again, a boy. Alexander is just so much more well known as a boy name, so I think it might be strange to have Alex as a full form on a daughter.
Dallas- I want to say boy, but something about a girl called Dallas is really endearing.
Keagan- I much prefer Teagan. Keagan feels less established. However, Keagan belongs on a boy if you were interested in using it.
Oakley- LOVE LOVE LOVE! I think Oak and Lee or Lynn on a girl is awful, but I find Oakley on a boy so charming! Adorable.
Rory- As a full name, for a boy. But Rory is a cute nickname for Aurora, which may suit your style.
Sam- As with the Alex thing, Samuel is more popular than Samantha, and hence it would make more sense to give Sam to a boy.
Taylin/Taelin - I would use Taylin for a girl and Taelin for a boy.- Much too made up sounding to my ears. Sorry!
Taylor- Hmmm....I don't have a fondness for Taylor, but I would give it to a boy.
Names that I've added since:
Cohen Oliver- Cute combo! Cohen is kind of controversial as a first name, so you may want to look into that, but otherwise, it's very sweet.
Oliver with a diff mn- Oliver is charming as a first, and I much prefer it to Cohen.
Aidan- I already went on my little Aidan rant, but I do have to say I love that you chose this spelling over the more popular Aiden.
Liam- I never understood why Liam is so popular! It sounds kind of dull to me, but definitely a dependable and strong name.
William- A hearty classic. One of my childhood favorites.
Rhett- Huh. I'm kind of liking this. Rhett is very handsome and southern!
Rhys/Ryse/Rhyse: I pronounce this as Rise hence why the spelling changes. I know that Rhys is pronounced Reese, but a happy medium for me is either Rhyse or Ryse- Gotcha. My favorite has to be Rhys, but I've never met a Reese/Reece/Rhys before, so I could be mistaken about if it would be pronounced correctly.
Xane/Zane- I cant stand Zane, probably because he was the name of the villain in a show I used to watch when I was like, 4.
Brielle- Stunning! Flowy, sweet, and feminine. A great addition.
Everleigh- I dislike Lee names, and I super dislike Leigh names, so I can't really say anything great about Everleigh. Sorry!
Phoenix Drew- I LOVE IT! So cute! Just masculine enough, with a very attention grabbing Z. Perfection.
Novalee- See Everleigh, except I dislike Novalee even more. So Sorry!
I apologize if I came off as rude or condescending as I'm now reading through this. Hope this helps!