1. A list of sample Web App Ideas - https://flaviocopes.com/sample-app-ideas/
2. 15+ App Ideas to Build to Level Up Your Coding Skills - https://www.florin-pop.com/blog/2019/03/15-plus-app-ideas-to-build-to-level-up-your-coding-skills/
3. What are some fun projects to try out using an API? - https://www.quora.com/What-are-some-fun-projects-to-try-out-using-an-API
4. Project Ideas - https://gist.github.com/MWins/41c6fec2122dd47fdfaca31924647499
5. 40 Side Project Ideas for Software Engineers - https://www.codementor.io/npostolovski/40-side-project-ideas-for-software-engineers-g8xckyxef