Huntsman's are the best. Even if they do bite you, it'll just make you feel dizzy and sleepy for a while, I've experienced this first hand. Do not Google a photo of social huntsman spiders though, they are ugly motherfuckers. They're gigantic and one of the biggest spiders in the world. I can't tolerate them indoors because they just make me sick to look at. Maybe I'm being dramatic. These guys will roam around and ruthlessly hunt down the deadly spiders, hence the name. But also you might have a midnight encounter when getting a glass of water. They are one of the only spiders that are social and understand group dynamics. They have families and share food. They have really good eyes for a spider, and will actually watch you as you retreat carefully. I hate how smart they are. Creepy fuckers. Wolf spiders are similar but less ugly and are solitary.

Daddy long legs (also known as cellar spiders, very different from the American daddy long legs) are also great at killing other spiders and cannot physically penetrate human skin with their fangs, making them completely harmless. They just chill in the corners of your house and you hardly notice them. Love these guys.

But yeah we try not to kill the "good spiders", because if you completely clean house, you'll get the "bad spiders". Even redbacks to an extent, I leave them alone if they're in the shed. They can kill almost everything and punch way above their weight class. I've seen them take out centipedes, giant cockroaches, all sorts. I relocate spiders if they're a problem like somewhere kids might get into, but mostly leave them be. Think of it like you have a mutual agreement with the barbarians to guard your walls, but they will try and sneak in sometimes.

Have you ever seen the movie Predator? That scene where he smacks the shoe before putting it on and a spider comes out? Do that every time. And don't leave laundry or towels lying on the floor. Shake out your linens. Don't trust gloves you've stored outside. Stuff like that. Then you should be fine. I live in South Australia so we don't have the deadly kind of funnel web, so I don't really worry about it that much. We do have other dangerous spiders but they tend to not live indoors thankfully. I may be desensitised to it though. I've been "blessed" with a biological signature that spiders and other insects find interesting, so I've been bitten hundreds of times in my life. One time I ended up with a really bad infection but some antibiotics sorted that out. I've heard that white tail spiders aren't actually dangerous and it's a myth... but that was the only one that got really badly infected, so I'm not so sure.

So yeah mostly we just don't encounter the dangerous spiders that often because we have a barrier ecosystem of less lethal spiders.

More reading: https://birdwatchinghq.com/spiders-of-south-australia/