Alexandru Vornicescu

If you want to include some post types or to exclude some terms from the RSS feed then this plugin is for you.

Filter RSS Feed

This plugin will help you to filter the RSS feed list by category and post type.

digitalzoomstudio

This plugin creates a custom wp_query via a shortcode. Accepts any parameter of WP_Query – https://codex.wordpress.org/Class_Reference/WP_Query
Demo here – http://digitalzoomstudio.net/developer-freebies/
My premium plugins – http://bit.ly/nM4R6u

DZS Custom WP Query Shortcode

This plugin creates a custom wp_query via a shortcode. Accepts any parameter of WP_Query

Filter RSS Feed vs DZS Custom WP Query Shortcode