My name is Arlo!

Hi, looking to rehome my dog Arlo. Hes almost 1, Blue Heeler x Australian Shepherd mix super high energy and loves people. Really affectionate, cuddly, follows you around, and super sweet with adults.
He needs lots of exercise: big yard or someone who can do long walks/runs/play every day. We did training with him and jumping on people is much better now,hes smart and learns quick.
Hard truth: hes started baring his teeth at our 6-year-old son sometimes. No bites ever, but it worries us. Hes great with us but we cant risk it around young kids. So ideally a child-free home, or one with only older kids if you know how to handle herding breeds/behavior.