Skimmed through some of these, like this which isn't even a contradiction.
Even here you can see that it even shows a verse where Jesus drinks the vinegar in two gospels yet claim it's s contradiction because He didn't receive the wine.
Luke and Matthew were referring to acquiring or buying a staff, Mark was referring to simply going as you are. The emphasis was that Jesus didn't want them to excessively prepare for the journey, but simply go out with the sandals they were wearing and a walking stick they had on them.