Shnoco offers a directory of no-code tools. If your product allows users to build and develop software and products without code, it's the place to get listed. They get 27,500+ visitors a month, mostly bootstrapped entrepreneurs, solo founders and no-code enthusiasts.

Product Hunt is the biggest product directory there is. If you prepare your launch well, you can expect thousands of visitors and lots of backlinks from secondary services, blogs, and newspapers that scout Product Hunt for products.