Does Top Hunter require you to launch your product?

No. You can launch on your own. A hunter just helps you boost the launch, so it is nice to have if you are new to product hunt. You can find relevant hunters on : https://upvote-bell.com/

You can launch your product yourself (which is exactly what I'm doing!). Top Hunters can help with boosting initial visibility for your product, but it's not a guarantee that you'll be at the top of the list on launch day 🤷‍♂️