Female Great Dane for Good Home

Unfortunately, I need to rehome my female Great Dane ( she is a little over a year old, spayed, tacked and up to date on shots).
She would prefer a home with no other pets or a male dog who isn’t hierarchical.
I am rehoming her as she is vying for top spot with my senior female dog.
She is great with kids (she lives with kids under 10).
She still has puppy energy so will need someone willing to work with her.