What are the Best Jackknife Brands?

I’d like to know what people think the best brands for jackknives are. If you were to look for one today, where would you look and what brands would you look at. I’m currently browsing around Amazon and a number of camping and bushcraft websites and I’m seeing tons of knives that vary in price. Some are as low as $14 and other go all the way up into the $100s of dollars. Is there a particular knife brand that everyone knows is the best? Is there a knife style that is the go-to? Why the price discrepancies?

So my questions are:

What’s your favorite jackknife brand?

Where do you like to shop for these types of knives?

How much would you spend on the perfect jackknife?

Thanks ahead of time.