Worst torture for a man would be removal of dick and balls, and once that is done, set them up on a dildo machine that fucks their ass 24/7
getting ass fucked is probably the most emasculating act you perform on a man
Every hour while suspended, have 1 centimeter grinded off of your body starting from the feet. Immediately after you are dropped onto a floor that has randomly popping spikes that have you dance around until you are suspended again, and the process repeats itself.
The best torture would be torture in which you give the victim hope.
Throw someone down a well with a ladder build onto the sides of the well.Super glue some kind of wires to his nails all with different lainghts.Give him a false hope.
As he starts climbing the stairs,he'll eventually realise that the wire on his nails aren't long enough to allow him to climb to the top.
He'll have to rip off a nail every time he gets further and further.As he's almost at the top the ladder will end.He won't be able to escape since his fingers are fucked and the ladder is gone.
Post them upright in the middle of a concave open pit that is at least four feet deeper than an average human's height. The food they can eat is monopoly dollars shoved down their throat and they can only drink warm non alcoholic Bud Light clamatos. Incels outside the pit are equipped with high powered shekel shooting guns and pelt them around the clock with their own shekels. They either die from getting pelted by shekels or from getting buried by them eventually.