Ask How can you create a recurring income stream with memberships site?

[SuperAffiliateX]

I'm new to membership sites and want to understand how they can generate recurring income. I know people pay a fee to access content or a community, but I'm not sure how to make it sustainable on long term. Do I need to offer new content regularly? Should I focus on upsells or different pricing tiers? I don't want members to cancel after a short time.

What's the best way to create a stable and long-term recurring income with a membership site?