Get a sub-category's latest topic?

Hey there, I am trying to get the latest topic of a subcategory, I use the code below to get the featured one but the problem with that that it shares between all subcategories

{{#each c.featuredTopics as |t|}}
    {{featured-topic topic=t latestTopicOnly=latestTopicOnly}}
{{/each}} ]

Is there any methods like this to get the latest topicof a subcategory?