Briar James - Briar is so sleeping beauty to me. Beautiful for a girl, but hard to see on a boy. And James is nice but too filler
Calder Vincent - Calder is really cool! It flows well with Vincent, I think.
Carson Andrew - Love Carson! Andrew is nice too. The only problem with this combo is, compared to your other names, it's really normal. Like generic normal. But I love it!
Carter John - Carter is fabulous <3
Chase Warren - Warren is NMS but I like this. If I was a boy, I would have been Chase, according to my mom.
Ciaran Thomas - ADORE Thomas!!!
Connor Perseus - LOVE LOVE LOVE! Not a huge fan of Connor, but Perseus is sooo great. Carson Perseus, maybe? <3
Elias Jude - Elias is ehhh. Jude's cool and tough though
Elliot Sterling - Nice, I love Elliot and Sterling isn't bad
Gideon Jack - Don't love Jack, but Gideon is fabulous and underused
Ian Alastair - I like Ian a lot (though I prefer Ivan) and I LOVE Alistair! (Not as much a fan of your spelling)
Jason Lee - another ehhh combo. Seems REALLY generic
Keaton Oliver - Oliver is fabulous, and a nice middle name. Keaton's cool
Matthias Peter - I love Peter, but not Matthias
Nico Alexander - I muuuuch prefer Nicholas.
Odin Michael - ehh :/
Ronan Elias - Love Ronan!!! Ronan Elliot?
Roran Timothy - Never heard Roran before. Not bad
Rory William - nice