How do I approach hunters for product launch, and what do they charge for a product launch?

While it may be time-consuming, you're better off building a community yourself. With the recent updates on PH, I don't think hunters are vital as they used to be.

You can use this leaderboard (https://upvote-bell.com/leaderboard) to identify relevant hunters for your project. From there I'd say send them an email or DM them on Twitter with a brief overview of your product and link them to your site! With these types of things it's usually a numbers game so the more hunters you ask, the more likely you'll secure one.

You can use https://upvote-bell.com/leaderbo... to check the most relevant hunter in your field. Most hunters have a website where you can directly contact them. What product do you plan to hunt?

Is it recommended to ask hunters to hunt my product prior to the launch? How much time in advance?

IDK😅🤷‍♀️

I'm a pretty active hunter, always welcome to reach out