I love having epiphanies in the middle of the night and synchronicities are fun too!
Grace is strong and beautiful and classic but I get what you’re saying. It’s more boring as a middle name though, as a first name it’s better.
Either way would work - lean into classic or go rare/unique etc. for contrast. I agree with Dianatiger’s suggestion too. I also like
Gracelyn and
Graciana well enough.
I would use:
Grace CordeliaGrace Aurelia Grace Leilani Grace Valentina Grace Arabella