Need to rehome my white German Shepherd

I am needing to rehome my dog. My kids and I love her to death but I’m scared my house isn’t big enough for her. She’s 6. She does not do well with dogs of any size. She will need classes or slowly introduce to other dogs. She is AMAZING with kids and people (both male and female). She will come with her heavy duty kennel, toy, bag of food, harness, and leashes. Asking a small rehoming fee