Youtube Blog Starter Pack | After Effects by MisterFlashStore on CGguy
https://elements.envato.com/youtube-blog-starter-pack-after-effects-UKB45PW
Free 
YouTube End Screens | After Effects by BoxOfMotion on CGguy
https://elements.envato.com/youtube-end-screens-after-effects-2GM3U6G
Free 
Social Media Subscribers | After Effects by BoxOfMotion on CGguy
https://elements.envato.com/social-media-subscribers-after-effects-683G2NG
Free 
Youtube Lower Thirds | After Effects by BoxOfMotion on CGguy
https://elements.envato.com/youtube-lower-thirds-after-effects-L8PX4WX
Free