Needing to rehome 6 month old German Shepard puppy (Fergus Falls)

Hello, I am needing to rehome my son’s 6 month old female German Shepard.
She needs shots and to be fixed as well.
He left with her with me and hasn’t come home or called.
Most days when he would come home she would be stuck in a tiny kennel for hours but now I’m taking care of her and it’s just to much as I am sick.
Asking rehoming fee