Walking on eggshells with my 6 year old

My 6 year old son is very VERY strong willed. He constantly is defiant, doesn’t listen, back talks, and has emotional outbursts often. It makes our home life very difficult 😞 I feel like my husband and I are constantly arguing with him. And if we’re not arguing with him , we’re walking on eggshells around him to not set him off with an attitude or tantrum. When he’s good- he’s great. I mean he honestly can be the sweetest kid ever- but then it’s like a flip switches and he’s filled with so much anger. It makes me so sad to think about. I just want us to have a peaceful home but I feel like our days are spent arguing, or avoiding conflict anywhere we can.

Any tips on how to help this kind of behavior?