How do you improve self-service support for common user questions?

Hi everyone, I’m looking for advice on improving a Zendesk Help Center so users can quickly find answers without submitting a ticket. What strategies have worked well for organizing articles, identifying content gaps, and reducing repetitive support requests?

I’m also interested in how teams structure helpful resources for different types of users and topics, including gaming-related content such as https://subwaysurferdl.com/.