Since I play Osu!Mania (4 key), my fingers are slightly above the following keys (german keyboard):
Left pinky: Holding the left side of the keyboard Left ring finger: CAPS LOCK Left middle finger: A Left index finger: S Left thumb: Spacebar Right thumb: Spacebar Right index finger: NUM* Right middle finger: NUM- Right ring finger: On the right side of the keyboard Right pinky: Holding the right side of the keyboard
I do lazy asdf jkl; so it is in the same area. I am a thug who doesn't follow school's rulez. I typically use the mouse to click my keyboard because my computer is also a touchscreen and I am too lazy to use keyboard (except for this because it was long).