need 5 categories to show posts

-------------- Update -------------- I want to make sure you read the project when applying and not copy/paste proposals... .I am so tired of freelancers applying without reading what I want and asking information related to it At the moment, I have 5 categories with 3-5 posts each - I need these to be shown on a page making sure they don't look cramped or congested or fitted into if you know what i mean - so I am assuming it could be something like Category title ----- Posts in slider or grid format and if I want to add more than 5 posts, they show up on that category page? I don't know the best means, but if you are good in Wordpress, you can give me a visual idea and if I like it, we can implement it - I am using the7 theme and visual composer just so you know. type WP-expert if you have read my project description..