A great short video idea for social media marketing could be a “day in the life” video that shows what a typical day looks like for your brand’s social media manager. This could include behind-the-scenes footage of planning and creating content, engaging with followers, and analyzing performance data. The video could also include tips and advice for other businesses on how to effectively manage their social media presence. This type of video can help to humanize your brand and give followers a better understanding of what goes into managing a social media account.