Which platforms do founders mostly use to launch products?
I have seen founders using product hunt, hacker news, reddit and twitter etc. Are there other platforms like this?
Always remember to not rely solely on a rockstar launch to determine the course of your product. Platform like producthunt, betalist could be miss or hit... and most of the times the kind of traffic you get may contribute to wrong signals.
IndieHackers, if their building something other founders would buy.
Niche Facebook groups are a great way to launch your product as well.