Some of the most common ones are:
- Use buzzsumo.com to find most socially shared contents in your niche. …
- Use alltop.com to find the most popular posts of your favorite blogs in your niche.
- Use Google Keyword Planner to find relevant topics and blog post ideas.
- Use Google related searches to find new ideas.
For More Information Please Refer: https://www.quora.com/Where-can-I-find-content-for-my-blog-From-where-top-bloggers-will-find-content-to-update-daily