We’re having a baby boy in [name_f]September[/name_f] and have yet to choose a middle name! We don’t want anything too traditional and nothing to out there (Like [name_u]Blue[/name_u] [name_f]Ivy[/name_f]) but something that’s a bit unique and flows well. We have a few ideas like [name_u]Avery[/name_u] [name_u]Chase[/name_u] and [name_u]Avery[/name_u] [name_m]Keane[/name_m] but would love to get a second (or third or fourth) opinion! Thank you so much :-).
[name_u]Avery[/name_u] [name_u]Chase[/name_u] McKay is wonderful and I think you should stick with that. 
First of all, I love [name_u]Avery[/name_u] for a boy! Great choice! It’s on my list as well.
I love [name_u]Avery[/name_u] [name_m]Keane[/name_m] on your list.
I also thought of [name_u]Avery[/name_u] [name_m]Zane[/name_m], [name_u]Avery[/name_u] [name_m]Callan[/name_m], [name_u]Avery[/name_u] [name_m]Davis[/name_m], [name_u]Avery[/name_u] [name_u]Jace[/name_u] (similar to [name_u]Avery[/name_u] [name_u]Chase[/name_u]), [name_u]Avery[/name_u] [name_m]Nash[/name_m], [name_u]Avery[/name_u] [name_u]Quinn[/name_u], [name_u]Avery[/name_u] [name_m]Quillan[/name_m], [name_u]Avery[/name_u] [name_m]Josiah[/name_m], [name_u]Avery[/name_u] [name_u]Jude[/name_u], [name_u]Avery[/name_u] [name_m]Kane[/name_m]/[name_m]Cain[/name_m]
[name_f]Hope[/name_f] that helps!
[name_u]Avery[/name_u] [name_m]Daniel[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Tucker[/name_m] McKay
[name_u]Avery[/name_u] [name_u]Hunter[/name_u] McKay
[name_u]Avery[/name_u] [name_u]Arlo[/name_u] McKay
[name_u]Avery[/name_u] [name_m]Garrett[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Gareth[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Kennon[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Miles[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Milo[/name_m] McKay
[name_u]Avery[/name_u] [name_u]Rowan[/name_u] McKay
[name_u]Avery[/name_u] [name_m]Silas[/name_m] McKay
[name_u]Avery[/name_u] [name_u]Spencer[/name_u] McKay
[name_u]Avery[/name_u] [name_m]Wyatt[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Boone[/name_m] McKay
[name_u]Avery[/name_u] [name_u]Zion[/name_u] McKay
[name_u]Avery[/name_u] [name_m]Jonah[/name_m] McKay
[name_u]Avery[/name_u] [name_u]Reed[/name_u]
[name_u]Avery[/name_u] [name_u]Elliott[/name_u]
[name_u]Avery[/name_u] [name_m]Beckham[/name_m]
[name_u]Avery[/name_u] [name_m]Wilder[/name_m]
[name_u]Avery[/name_u] [name_m]Lincoln[/name_m]
I really like both [name_u]Avery[/name_u] [name_u]Chase[/name_u] & [name_u]Avery[/name_u] [name_m]Keane[/name_m].
Other ideas:
[name_u]Avery[/name_u] [name_u]Jude[/name_u]
[name_u]Avery[/name_u] [name_u]Finn[/name_u]
[name_u]Avery[/name_u] [name_u]Flynn[/name_u]
[name_u]Avery[/name_u] [name_m]Scott[/name_m]
[name_u]Avery[/name_u] [name_m]Fox[/name_m]
[name_u]Avery[/name_u] [name_m]Chad[/name_m]
[name_u]Avery[/name_u] [name_u]Kai[/name_u]
[name_u]Avery[/name_u] [name_m]Mack[/name_m]
[name_u]Avery[/name_u] [name_u]Glenn[/name_u]
[name_u]Avery[/name_u] [name_m]Forbes[/name_m]
[name_u]Avery[/name_u] [name_m]Hayes[/name_m]
[name_u]Avery[/name_u] [name_m]Hugh[/name_m]
[name_u]Avery[/name_u] [name_u]Dean[/name_u]
[name_u]Avery[/name_u] [name_m]Clarke[/name_m]
[name_u]Avery[/name_u] [name_m]Milo[/name_m]
[name_u]Avery[/name_u] [name_u]West[/name_u]
[name_u]Avery[/name_u] [name_m]Vaughn[/name_m]
[name_u]Avery[/name_u] [name_m]Heath[/name_m]
[name_u]Avery[/name_u] [name_m]Felix[/name_m]
[name_u]Avery[/name_u] [name_m]Cole[/name_m]
[name_u]Avery[/name_u] [name_m]Eben[/name_m]
[name_u]Avery[/name_u] [name_m]Miller[/name_m]
[name_u]Avery[/name_u] Wilde
[name_u]Avery[/name_u] [name_m]Wilder[/name_m]
I have a son named [name_u]Avery[/name_u] [name_u]Asa[/name_u]! He loves his name!
I like the suggestion of [name_u]Avery[/name_u] [name_u]Jace[/name_u] because I have a son named [name_u]Jace[/name_u] so I love the name 
[name_u]Avery[/name_u] [name_u]Keaton[/name_u] would be cute too!
[name_u]Avery[/name_u] [name_u]Wade[/name_u]
[name_u]Avery[/name_u] [name_m]Nash[/name_m]
[name_u]Avery[/name_u] [name_u]Trace[/name_u]
[name_u]Avery[/name_u] [name_m]Griffith[/name_m]
[name_u]Avery[/name_u] [name_m]Maxwell[/name_m]
[name_u]Avery[/name_u] [name_m]Theron[/name_m]
I like something short and strong-sounding with your fn and ln…
[name_u]Avery[/name_u] [name_m]Keane[/name_m] McKay (it works! Although it kinda sounds like a description ‘[name_u]Avery[/name_u] ‘he’s keen!’ McKay’ but keen is not a bad thing whatsoever)
[name_u]Avery[/name_u] [name_u]Chase[/name_u] McKay (it’s cute but sounds like a verb ‘[name_u]Avery[/name_u] chases McKay’)
[name_u]Avery[/name_u] [name_m]Birch[/name_m] McKay
[name_u]Avery[/name_u] [name_u]Flynn[/name_u] McKay
[name_u]Avery[/name_u] [name_m]Hank[/name_m] McKay
[name_u]Avery[/name_u] [name_m]Miles[/name_m] McKay
[name_u]Avery[/name_u] [name_u]James[/name_u] McKay (might be too ‘filler’ for you but I think it really grounds [name_u]Avery[/name_u])
[name_u]Avery[/name_u] [name_u]Dane[/name_u] McKay
[name_u]Avery[/name_u] [name_m]Scott[/name_m] McKay
I really love the suggestions of [name_u]Avery[/name_u] [name_u]Jude[/name_u] and [name_u]Avery[/name_u] [name_u]Reed[/name_u]. From your original options, I prefer [name_u]Avery[/name_u] [name_u]Chase[/name_u].