New middle names for my top 2!

My two favorite names which I will almost definitely use at some point are [name]Elisabeth[/name] and [name]Cassandra[/name]. I had middle names that I liked, but now the combos seem boring, and I want something slightly more exciting!

previous combos:
[name]Elisabeth[/name] [name]Kate[/name] “[name]Elise[/name]” (too boring)
[name]Cassandra[/name] [name]Vivienne[/name] “[name]Cassie[/name]” or “[name]Cassia[/name]” (have been told this is too much name)

surname is four letters and two syllables, because of surname, the middle name should not end in “m” or “er”

bonus question: middle name for [name]Rosalie[/name]?

Thanks!!

In no particular order:

[name]Elisabeth[/name] [name]Audrey[/name]
[name]Elisabeth[/name] [name]Cordelia[/name]
[name]Elisabeth[/name] [name]Ivy[/name]
[name]Elisabeth[/name] [name]Matilda[/name]
[name]Elisabeth[/name] [name]Pearl[/name]

[name]Cassandra[/name] [name]Evelyn[/name]
[name]Cassandra[/name] [name]Gwendolyn[/name]
[name]Cassandra[/name] [name]Iris[/name]
[name]Cassandra[/name] [name]Juliet[/name]
[name]Cassandra[/name] [name]Josephine[/name]

[name]Rosalie[/name] [name]Charlotte[/name]
[name]Rosalie[/name] [name]Delphine[/name]
Why not [name]Rosalie[/name] [name]Cassandra[/name]?

[name]Elisabeth[/name] [name]Catherine[/name]
[name]Elisabeth[/name] [name]Iris[/name]
[name]Elisabeth[/name] [name]Adeline[/name]
[name]Elisabeth[/name] [name]Cecilia[/name]

[name]Cassandra[/name] [name]Margaret[/name]
[name]Cassandra[/name] [name]Elise[/name]
[name]Cassandra[/name] [name]Kathleen[/name]
[name]Cassandra[/name] [name]Lucille[/name]

[name]Rosalie[/name] [name]Elisabeth[/name]
[name]Rosalie[/name] [name]Marion[/name]
[name]Rosalie[/name] [name]Eleanor[/name]
[name]Rosalie[/name] [name]Ruth[/name] (too many R’s?)