Free male bull breed mix to good home

Looking to rehome roughly 5yr old bull breed mix. He is utd on rabies, unaltered and high drive/energy and dog selective. I prefer him to go to home with capable owner with knowledge on management of reactive dogs. Prefer no small children(no under 8-10yrs old) and no other animals. He needs an outlet being high energy with a knowledgeable owner. I prefer email or text as I do not answer calls from numbers I do not recognize, TIA.