After watching many street fight clips, it seems to me that boxing’s the best self-defence choice

Most street fights I see on r/fightporn start with an aggressor throwing one big telegraphed punch in the hope you'll stand still to be knocked out.

People with a boxing background can just instinctively dodge the punch. As Mr Miyagi said, "if no can be hit, no can be hurt". With the aggressor not understanding what just happened, you deliver a quick combo to the aggressor which knocks them down, since most have no MA background anyway.

Grappling and Muay Thai strikes are an important skillset too of course, but in the vast majority of cases it's just someone throwing sloppy punches at you. Boxers have the most experience dealing with this, especially with dodging punches which most people overlook.