Join the travelling community. They have some epic old fashioned battles, as seen on YouTube.
Somewhat shamefully, I followed a football team for many years. Always loved away games, especially somewhat rough, in London. I was eventually nicked at one & spent a night in the cells. But in those days it was all bravado. A bit of fronting up, a charge & a few punches or kicks. But it was with similar likeminded idiots, never with anyone not looking for it. It was usually one on one & all over in a few mins. None of this 6 lads stamping someone half to death.
Sadly, the acceptance of low level crime in the last few decades has brought down the acceptance of more serious crime too, with too many idiots ready to stick a knife in to someone.
I was glassed 19 minutes into the new millennium, so will happily walk away from a fight with a moth these days.