Improving SEO to compete with older forum competitor

[ArtG]

Anyone with SEO experience that is current to today's search engines, specifically Google?

I am competing in a market that has very old forums that have all migrated to Xenforo. Most of these forums are 15+ years old. Their organic keyword numbers are in the thousands compared to my hundreds.

Other than waiting 15+ years to let Google marinate on my site and members to add thousands of posts, any suggestions on improving SEO and indexing of pages?

I'm specifically asking about on page...

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Improving SEO to compete with older forum competitor

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