First of all, for the Trey thing, I think Trey on its own is okay, but if you don't like it on its own, I think Treyton "Trey" isn't too bad. Others that are more of a stretch but have been used are Trevor "Trey", Theodore "Trey", Terrence "Trey", Trenton 'Trey", Trent "Trey".
Asa Christian - Though I'm not a huge fan of Christian, I really like Asa and think this combo is really handsome.
Asa Timothy Christian - I love Timothy, and I like this even better than just Asa Christian.
Eli Jameson Miller - This one is handsome, but I think the M's in Jameson and Miller clash a bit.
Eli Jackson Edward - This one flows better than Eli Jameson Miller to me, and though I'm not a fan of Jackson I really like this one.
Ezra Rowan Lane - I adore Ezra, and Rowan and Lane are nice, but I think the flow of this combo is off. The R's in Ezra and Rowan clash a bit, as do the N's in Rowan and Lane.
Ezra Jameson - This combo is super handsome! I wouldn't change it at all.
Kieran Everett Rhys - There are a lot of R's in this one, but it's not too bad. Kieran Everett works just fine, but I think when you add Rhys in there it pushes the R limit. I really like Everett, by the way, and I see it's an honoring name, so that's cool. I've never met anyone with that name.
Kingsley ??? - To be honest, I don't like this one. I can see the potential for a pretentious sound here, but either way, I'm not a fan of King- names.
Laken Elizabeth - Not a huge fan of Laken, but Elizabeth is a nice classic that balances the uncommon name well.
Avia/Aviana Charlotte - Avia looks pretty, but how do you pronounce it? I think the fact that Avia is shorter makes it a better fit for Charlotte. Aviana is alright, but not really my style.
Hadley Genevieve - I've never really been a fan of Hadley, but Genevieve is pretty.
Hadley Louise - I do like Louise, but I think Genevieve sounds better with Hadley.
Kyrie Amelia - Kyrie is okay but not my stylie. Amelia is nice, but I don't know that these two names really 'fit' together for me.
Elia/Eliana Harper - I prefer Eliana to Elia here, and I love Harper, but I feel like Eliana Harper is a bit of a mouthful. It's not too bad, though.
Everly ??? - Though I wouldn't use it myself, I think Everly is pretty. What do you think of: Everly Rue, Everly Scarlett, Everly Matilda, Everly Adeline, Everly Coraline, Everly Claire, Everly Hazel?