The best alternatives to Side Project OS are Side Project Stack, IndiePulse, and SideProjects. If these 3 options don't work for you, we've listed a few more alternatives below.
Making a side project can be time consuming and overwhelming. To help with this, I've created a list of many Indie Maker's tech stacks and I've built a recommendation app to find the best tools to make your next project (recommendations are no-code tools).
Secondfounder is a marketplace where products are sorted in kanban-style order, making it super simple to explore side projects. You can also collaborate with founders to buy a side project
Believe me or not this is perfect time to start own AI startup in this golden era of AI, and I research on the internet and found some amazing side projects people built using GPT-4 and making millions of dollars. [ 100% Free ]
Woop is a no server-side web application deploied on github page. It is inspired by Boop an MacOS application which can't runn on other platforms. So Woop appeared. It helps to process text and expects to cover common usage scenarios. Text looks like stream flowing from one function to another and becomes a final output.