Jonny Harris

This is a simple plugin designed to make it super easy to add custom post types RSS feed into a theme. This plugin automatically queries post types that have archives enabled and generates a markup and adds it to head.
Read more about this plugin at it’s <a href="http://www.jonathandavidharris.co.uk/scripts/custom-post-type-rss-feeds/" rel="nofollow ugc">homepage</a> .
All check out the development version on github. <a href="https://github.com/spacedmonkey/custom-post-type-rss-feed" rel="nofollow ugc">https://github.com/spacedmonkey/custom-post-type-rss-feed</a>

Custom Post Type RSS feed

This is a simple plugin designed to make it super easy to add custom post types RSS feed into a theme.

netbiel

This plugin ads some extra options to your Customizer (like social icons), registers taxonomies and custom posts types for: 
– Portfolio items 
– Testimonials 
– FAQ 
– Team Members
This plugin doesn’t change how new post types are displayed in your theme. e.g You’ll need to add templates for archive-portfolio.php and single-portfolio.php if you want to customize the display of portfolio items. 
In the theme integrated with smartlib library you don’t need do anything

Smartlib Tools

Useful post types and customizer options.

Custom Post Type RSS feed vs Smartlib Tools