The strongest argument against good God is not merely the problem of evil.
Its not "evil exists = good God doesnt"
Its the problem of purpose.
Think about it.
For what purpose would a good God create this world?
This world is full of evil that literally plays no purpose in anything.
It merely tortures good people.
Plus, there is no equal standard for anything in this world.
Some die in the womb. Some die from hunger at age 5. Some are born with disorders. Some are forced into crime at early age.
How is that an equal opportunity for everyone to become good?
There is simply no purpose in this world. No rational and good God would create such a world.
There is no explanation for what purpose all the human and animal suffering plays, and what purpose will suffering play in hell.
From this, only one can be concluded. God is not good. He exists, but he is not good.