I recommend making it part of regular cadence. Every Friday or every other Friday (or part of the day). You can encourage them to share learnings or summaries w

I recommend making it part of regular cadence. Every Friday or every other Friday (or part of the day). You can encourage them to share learnings or summaries with the teams. These days can also be used to attempt to apply learnings in ways that improve the team or org. These don't need to be formal courses or books either: it can be exploring and learning systems at work, or understanding system telemetry or customer use cases better.