Looking For mastiff Breed to give a loving home to!

Many years dog experience!! I have had boxers most of my life and just lost my last two this past Winter ! Jakie was 12 and Jadeyn was 10-1/2. My dogs have spend all their time with me. (retired) Live out in the country and have over 8 acres of land to run and hike and play. Close to wildlife areas and ponds for swimming. Hopefully leash trained and friendly with other dogs and children. Please get back with a pic and details Not looking for pit mixes!!