Okay time to bring on the honesty - by the way I *love* your firstborn's name, Oscar Slaide Ashyr

Cruz Really not a fan of this one and is becoming very common
Jett Goes really well with your last name, although I'm not a huge fan of the name
Felix Hahaha yes Felix the cat! But it is a very cool name - every time I hear it I smile. Not sure why I just love it!
Milo LOVE this name. Unusual but not too weird (thankyou Milo Ventimiglia).
Ethan Commonnnn. I prefer Elliott personally.
Henry Have never been a fan.
Harrison I love the name Harrison, but like you said, be careful with your last name. If you want Harry, just name him Harry
Chasen Definitely go with Chase (I also love this for a girl, but it's one of my favourite boys names too)

girls we have (again do not hesitate on your opinions)

Indi Pretty, another vote for spelling it Indy
Ayah Prefer Ayla
Asia Don't really like this, I knew a dodgy Asia once...
Alizae Pronunciation/spelling going to be an inevitable problem with this one.
Ayla Lead character in one of my favourite book series - I've always liked this name
Brynn I see this as a last name, not a first - not really a fan of it as FN.
Channing Nope. Sorry!
Edyn I like Eden better, becoming more common for both girls and boys
Bryony This is really pretty.
Mia So pretty. So many people think so! *hits all the people making this name too common* :P
Milla Said this in another post, I prefer Myla (My-lah). So pretty!
Ruby Love it, but very common
Charli Adore it as a diminuitive for Charlotte. Super cute!
Sienna Love love love
Zayleigh I'm not a fan of -leigh spellings in general, and I don't like the Zay. Have you thought of Xanthe (Zanthee)? Also very original and pretty...
Immaliah I don't really like this one sorry!
Imogen Love it. My favourite version is Imogene (Imo-jean) nickname Genie
Chelsea I love this. You could play around with spellings to find something not so mainstream?
Saige Absolutely stunning. Love it.

Overall my favourites are Chase & Milo for boys, and Saige & Sienna for girls. Other names you might also like: Hamish, Westley, Oliver, Demetri, and Micah for boys; Lucia, Sophia, Cassandra and Jemma for girls