Not sure about these because they all end in the N sound.
[name]Brynn[/name] [name]Caroline[/name]
[name]Brynn[/name] [name]Evelyn[/name]
[name]Brynn[/name] [name]Josephine[/name]
[name]Brynn[/name] [name]Katherine[/name]
I really like the following:
[name]Brynn[/name] [name]Violet[/name]
[name]Brynn[/name] [name]Summer[/name] (I don’t think the double letters look weird )
[name]Brynn[/name] [name]Alexandra[/name]
[name]Brynn[/name] [name]Charlotte[/name]
[name]Brynn[/name] [name]April[/name]
[name]Brynn[/name] [name]Abigail[/name]
[name]Brynn[/name] [name]Caroline[/name] and [name]Brynn[/name] [name]Josephine[/name] sound good too. It doesn’t really sound weird because they end with -ine rather than the other two which sound like -inn like [name]Brynn[/name].
My favorites from your list are:
[name]Brynn[/name] [name]Olivia[/name]
[name]Brynn[/name] [name]Charlotte[/name]
[name]Brynn[/name] [name]Caroline[/name] (if pronounced Cair-oh-line, not Cair-oh-lyn)
[name]Brynn[/name] [name]Josephine[/name]