Please reference this when you are facing Overload.
The best counter to Overload is Quick Counter and Out Wide so if you have a manager like Tuchel, Kovac, or Roberto Martinez you will be fine.
You will see that you can easily catch any Overload user on the counter with ease once you catch them deep in your own half.
Any manager with Possession Game and Quick Counter will be able to cover all 6 playing styles like Tuchel and Klopp so they will be the best managers in the game until a Possession Game and Quick Counter manager comes with a two link ups.