2.5 year old female German Shepard (Show low)

Looking to rehome my female German shepherd she’s 2.
5 years old her name is Luna she’s a very good girl house trained very polite knows her manners, will sit lay fetch loves car rides.
I’m having to rehome due to she doesn’t really get along with my small dog.
she is best being just an only dog or maybe around bigger dogs.
She’s very good with kids and adults and loves to play.
She’s fixed and up to date on her shots.