Let's talk about them - all the people who decide to keep others safe (or perhaps just earn a good living) by facing things few men can stand up to.
It's clear that not many would set out to do so. It takes a certain kind of person to face the beasts, as all but the weakest could slaughter a village with relatively little difficulty - and even those could, in numbers, which they often have.
But more importantly and to the point - it takes a very specialized set of skills. Knowledge, too: A lot of the time, it takes exploiting a weakness to truly defeat the beast. Other times, a single mistake could be lethal - take a basilisk, for instance.
But it goes beyond knowing - it takes preparation, in equipment and tactics. To fight a monster - almost any, save for the most humanlike - is entirely different from facing a human. Mobility is so much more important against those who can shatter steel, but one still needs armor against those faster than a man. One must know how to avoid flame, or acid, or anything really, and how to fighting without looking at the foe if needed. How to best deal with a horde and a giant both. How to fight in any environment to full capacity. To always have means to strike, one would need a variety of weapons - going beyond regular categories. Certainly, a ranged, reach and regular weapon would serve well, but a veteran would have specialized weapons, just for a specific task. Just as a parrying dagger exists for a reason, so would the hunter's tools.
With all that in mind, the purpose of this thread is ideas: For how exactly a professional monster hunter would fight, with what, and how regular folk would think of them for it.