Example of a Post Type of Gallery in WordPress – this will automatically gather any attached images to a post and display them as a slider both here on the blog index page and also the individual post page – also note that if your category for the homepage loop is chosen, your gallery images

Welcome to the good ol' standard post format – you can add a featured image or not, type your post and link to articles and even place inline images or a fancy lightbox powered standard wordpress gallery to your post.