Wordpress themes like Scoopwhop, storypick and buzzfeed.

1. SOCIALLY VIRAL

Similar to http://www.upworthy.com/ and http://www.viralnova.com/ 

But it could be useful to what you are looking.

It has,

• Mega menu to present image content in Menu bar itself on hover, which is kinda cool.
• Infinite Scroll with "Load more" button at bottom.
• Social media Sharing buttons including Pinterest which could be useful if your content is Image Focused.

Checkout this Theme DEMO HERE.

2. Newspaper

Again with Mega menu and Infinite Scroll we have this cool theme which has really Impressive Dashboard Settings.

Many of you may not find the Sidebar so cool but it can be customized with little work. 

For all its Settings you should visit this.

Checkout this Theme DEMO HERE.

3. SaladMag

Other then Just Mega Menu and Infinite Scroll, This theme adds 2 styles, one is grid and other is list view implemented with infinite scroll. Both Buzzfeed and Scoopwhoop use the list view with infinite scroll. 

So overall this theme is the closest Clone.
Checkout this Theme Demo here.

4. Newscore

Similar to above, It has new 4 Home Styles  with option to present in Grid view and List view. Also it has Video oriented Home page if you are going for videos.

Checkout this Theme Demo here.

SOURCE- TECH DEVTA