Can I create a keyword alert for non Google news sites?
There are 2 options right now:
1) Upgrade to Feedly Pro+ and set up a topic/keyword priority for all the sources/feeds you follow in your Feedly. You can learn more about Leo here: https://blog.feedly.com/leo/
2) Set up Google Alerts via RSS: https://blog.feedly.com/follow-a-google-alert/