Ask HN: I want to develop an effective eng learning program at my company

The TLDR, I want to create an effective program at my company where software engineers can learn about useful topics in computer science, software engineering, and technical aspects of our product that may not be well understood. Any advice?

We are a remote org, around 200 or so engineers working more or less on the same product. We have a lot of people on the west coast, but many throughout the US and some abroad so timezones are a factor. The legacy format I'm inheriting is an occasional Zoom session where someone presents a topic that's scheduled at an inopportune time for most people so turnout is meh. It's also difficult to recruit presenters.

I'd be grateful to glean some ideas from anyone willing to share the good or bad in their experiences with such programs. I appreciate the insight.