Launch Point Zero - https://launchpointzero.com
I scraped a bunch of sites from a variety of places including Indiehacker;
https://www.indiehackers.com/post/relaunch-like-a-pro-100-places-to-launch-relaunch-and-list-your-product-7c67875635
The problem is many of these sites are out of date, abandoned or not working. So I created a list of each site and started making notes for each one. I hope you find this useful.