I read that toI read on here where a girl took an aggressive roo and gave him a bubble bath in front of his flock of hens!They said it worked and the rooster quit being aggressive towards her daughter.![]()

Personally I wouldn't waste my time & energy on an aggressive rooster, but not just because of the problems the rooster causes.

I must admit keeping or breeding aggressive roosters is just asking for more aggressive roosters. Once I start breeding our birds I'll be selecting the roosters for quietness & nice temperments.
During a zoology course I learn't in the wild being more aggressive helps, but with domestic animals its seen to have bad results time & time again... Example could be our female friend 2 years back who wouldn't have her aggressive home-bred stud dog even so much as castrated. Surprise, surprise her 5 year old "baby" latched on to her arm when she went to remove a ***** from his kennel one day. She had to have a blood transfusion & stitches because it was a very large male Akita who has always growled, snarled & attacked (or tried to) other people even on his walks & her husband had to beat it off her with a shovel when he heard her screaming.
She tried all sorts of training & dominance skills with him over the years before that, but nothing worked. As far as the dog was concerned, he was Alpha, Omega & everything else. Traits like that can be bred out.
I have heard from people who have bought her pups are usually less than happy when the temperments start showing at 6-12 months, the dogs were very aggressive & many of them have been put to sleep / rehomed because they are really big & powerful & acted semi wild & dominant. A few people tried suing her, but she just told the courts the pups were fine when they were sold. Its hard to trace behavioral problems back to breeders .
Her other Akita stud dog was a nice playful giant & as far as I know his pups have never had any problems. But she's no longer breeding them now & has got rid of them all because of that incident.
Just pointing out if you can't bear to kill or rehome him & its unfair to lock him away, then you will have to learn to live with him.
That probably means chasing him around with a broom, pinning him to the floor, bathing him, sitting on him, chucking him in a bin for time out.... try everything. You may even end up just avoiding him if nothing works.
You say you need a rooster to protect the hens... well now he's protecting them from everything including yourself.
That's his instinct, you may not be able to change it, but there's the possibility it may improve towards yourself.
Whats he like with the other roosters & animals?
Oh, and if you can, file down his spurs, they can do a lot of damage!