wp-missed-schedule

Find only missed schedule posts, every 15 minutes, and republish correctly 10 items each session. The Original plugin (only this) no longer available on WordPress.org for explicit author request! Compatible with WP 2.1+ to 4.9+ and 5.0-beta3 (100.000+ installs 300.000+ downloads 2016-04-13) Please: do not install unauthorized malware cloned forked!. Maintained by sLaNGjI on GitHub, where it has earned 72 stars from the community.

It's actively developed around cron, failed, fix, and is a solid reference for anyone building with these tools.