how do some fb pages rank their post so quickly

an example, I have competition and we all write about the same topics. We use different websites, however, they have a fb page (2k likes) not much engagement (other than a few visitor notes)

When I saw the serps:

1. their facebook page article post on topic
2. my domain – post on topic
3. their domain – post on topic
4. news outlets
etc…

I am trying to implement the same method, they probably have 5 months ahead of me. I have 1k likes from advertising and I have more natural likes on my…

how do some fb pages rank their post so quickly