Daniele Alessandra

With this plugin every contributor will be able to check how his contents look like in every context. 
it works with posts, pages and custom post types as well, and every contributor may enable his own previews (i.e. two or more users may create and navigate their own contents without interfering one another).

Preview Everywhere

Sometimes a single page preview is not enough, with this plugin you’ll be able to check how you contents look like in every context, including home pa …

binarymoon

jwall

Front Page Category is a plugin that let you select the categories that appear on the front page of your website. If there are categories that you don’t want to appear on front page, for example the ‘uncategorized’ one, just go to the Customizer → Front Page Categories menu, and then untick the categories you want to hide.
This could be useful if you use an automated posting system, or use email to post. In these cases you can assign these posts to a category of your choice and uncheck it at Front Page Category settings. They will then be hidden from the homepage – but will still appear on their category page.

Front Page Category

I use his for hide category, a kind of second parallel blog.

Good Plugin for 2nd blog:)

A plugin that lets you select the categories that appear on the front page of your WordPress site.

Preview Everywhere vs Front Page Category