Park on Ordsall Lane (or one of the steets of it e.g. St Clements Drive).
10-15min walk to the ground.
Easy access to M602 after the game to get on your way back to Newcastle.
I live down that way, so I know it’s fine on Match days.
Just remember, where ever you do end up parking, don’t leave anything on display in your car and you’ll be fine.