So I built a tool to solve that and its included with my EliteSaaS template (you get all the source code)
Product Hunt Launcher
It helps you:
• Generate your tagline, description, and first comment
• Draft maker bios and tweets
• Preview your post before going live
• Export all your launch assets
Would love feedback or ideas for what else to include.
You can see it at https://www.elitesaas.dev/product-hunt-launcher