How do you come up with ideas for your apps?

Solo developers, once you've released an MVP, what is your next step in terms of building features? What is your process for choosing important features and executing on them? I'm building a brainstorming tool for developers and want to make sure that I am on the right path. Thanks for your help. Here's the link: https://www.swizo.app/?utm_source=ProductHunt&utm_medium=ProductHunt+Post&utm_id=Swizo