Single piston engine goarounds remind me of practicing how to die.
I've seen one Apache where that was attempted on a short runway with the engine that drove the hydraulic pump shut down; so, you had to work the manual pump to raise the gear
Very fortunately the crew survived the cartwheel.
In another case a Transport Canada inspector called for a single engine goaround that killed him and the examinee.
I would suggest a healthy altitude and speed below which you will not goaround. If something's on the runway, there's lots of grass alongside.