Maybe there exist similar plugin?

Hello i know WordPress has enormous database of plugins that is main reason why it’s best CMS in the world so maybe there is some that could hide posts from particular category or some plugin that lets user choose hide posts or not i want to do that some posts be only visible in widget i will use plugin that lets display posts from particular category and i want find way how to hide those posts that will be displayed on that widget I’m open for all suggestions.