I'd personally use
Susanna Juliet or
Susanna Margaret.
Of your combos, I really like:
Susannah WillowSusannah BelleSusannah RoseSusannah MaySusannah LarkSusannah Pearl
Susannah is a tried and true classic and I like the idea of something unexpected in the middle. The mns I've chosen here have a light feel to them that balances out the combo. My fave combo is surprisingly
Susannah Lark. That's lovely!