Soft boy names

So this is for a puppy, not a baby, but I still think that this would be a great place to ask. I’m trying to decide between a list of names, I’m also open to suggestions on 'softer sounding boy names that would work for a blue [name_u]Merle[/name_u] Australian shepherd. So far our list includes:
[name_u]Luca[/name_u]
[name_u]Sacha[/name_u]
[name_m]Jasper[/name_m]
[name_u]Percy[/name_u]
[name_f]Juno[/name_f]
[name_m]Atlas[/name_m]
Blueberry ([name_u]Blue[/name_u]) -my younger sister’s absolute favorite.
I don’t want it to be too feminine, easy to shout, and one that would fit both a 5 pound puppy and a 60 pound full grown dog. Thoughts?

[name_u]Chase[/name_u]
[name_m]Clay[/name_m]
[name_m]Clayton[/name_m]
[name_u]Channing[/name_u]
[name_m]Caleb[/name_m]
[name_u]Sullivan[/name_u]
[name_u]Sterling[/name_u]
[name_m]Atlas[/name_m] (love this one on your list)
[name_m]Jax[/name_m]
[name_u]Pax[/name_u]
[name_m]Bodhi[/name_m]
[name_u]Barrett[/name_u]
[name_m]Chaplin[/name_m]
[name_m]Bishop[/name_m]
[name_m]Xander[/name_m]
[name_m]Greyson[/name_m]
[name_u]Grey[/name_u]
[name_m]Guy[/name_m]