Beginner Sim Racing Endurance?

Hey everyone,
My buddy and I just got into sim racing and we’re having an absolute blast. We’re both around the beginner/intermediate level, and we’re looking for ways to keep things interesting beyond the normal official races.
We’re really interested in doing team endurance events together, but we’re not sure where to start.
A few questions:
• What’s the best way to find beginner-friendly leagues?
• Where do you find team endurance events that don’t require an alien pace?
• Are there any 2-hour team races, or are team events usually 4, 6, 12, or 24 hours?
We’re mainly looking for something that’s competitive but also fun, where we can improve together without getting thrown into a super serious environment right away.
Any league recommendations, Discords, websites, or communities would be greatly appreciated. Thanks!