1.Google Trends: https://www.google.com/trends/
2. Meta search Twitter: https://www.trendsmap.com
2. BuzzFeed: https://www.buzzfeed.com/
3. Use the trending tab on You Tube: https://youtube.googleblog.com/2015/12/youtube-rewind-2015.html
4 Ever try Reddit? Be careful when searching for legitimate posts/ideas: https://www.reddit.com/
6. Another great one to explore, though you need to make your own algorithm: https://medium.com/
7. **This last one used to be free but isn’t anymore..but you can get a 14 day free trial: https://www.newswhip.com/newswhip-spike/