Hi. I agree. I'm pretty sure on Youtube you can find great tutorials. Meanwhile, maybe these tutorials can be helpful:
https://helpx.adobe.com/uk/premiere-pro/how-to/create-a-stop-motion-animation-for-instagram-with-mrdrowlands.html
https://helpx.adobe.com/uk/premiere-pro/how-to/quickly-edit-footage-for-instagram-stories-with-mrdrowlands.html
https://helpx.adobe.com/uk/premiere-pro/how-to/create-a-professional-looking-instagram-story-with-mrdrowlands.html
https://helpx.adobe.com/uk/premiere-pro/how-to/optimise-your-footage-for-instagram-stories-with-danielsjensen.html
https://www.adobe.com/creativecloud/video/discover/vertical-videos.html
https://helpx.adobe.com/uk/premiere-pro/how-to/create-a-moving-photo-for-instagram-with-mrdrowlands.html
https://www.adobe.com/creativecloud/video/discover/vertical-videos.html
https://www.adobe.com/creativecloud/video/discover/how-to-edit-videos-for-instagram.html
https://www.adobe.com/creativecloud/video/hub/ideas/correct-instagram-video-length
... View more