If you would like to post videos in your Instagram posts you might want to find free stock videos eg video clips of exotic fish or a busy street or Halloween footage – clips that suit the subject of your post but you are unable to shoot yourself. If so check out Videvo – the website has thousands of free videos that you can search through and download.
Once you find a video you could then use an excellent free app like Vlogit to add your logo and some text.
You can access the Videvo website here