The following are links to plugins and tools that we looked at during the discussion.
Social Media Feed Plugins — https://wordpress.org/plugins/instagram-feed/
Create a custom post type plugin — https://blog.templatetoaster.com/wordpress-custom-post-type-plugins/
Math Equations plugin — https://wordpress.org/plugins/wp-quicklatex/
Create a child theme — https://developer.wordpress.org/themes/advanced-topics/child-themes/