A sister for Amos Julian

I have a 21 month old son and we are starting to try for #2! I have a few girl options I love as a sister for my [name_m]Amos[/name_m] [name_m]Julian[/name_m] and am open to suggestions…here goes -

[name_f]Mabel[/name_f] [name_u]Evelyn[/name_u] (after my grandmother) - I do worry about the rising popularity of [name_f]Mabel[/name_f] - we live in L.A. and I have heard the name called at playgrounds several times
[name_f]Rosamund[/name_f] [name_m]Wilder[/name_m] - nick name “[name_f]Rosie[/name_f]” - our last name is very common/anglo-saxon and begin with an R and theres something about [name_f]Rosie[/name_f] [name_m]Wilder[/name_m] R… that just seems wonderful

What do you guys think? I would love thoughts on the two options and other ideas as well!