Startup Idea: Smart Social Media Management Tool

Startup idea to develop a 'smart' software solution for social media managers. The software should allow creation of a post once and help tailor it according to the requirements of different social media platforms like Facebook, Instagram, and Twitter. It should also offer features like resizing images to fit, converting video formats, lengthening or shortening text, and suggesting trending hashtags.

In my past two jobs I have worked as a social media manager. Both companies I worked for were businesses that have reoccurring events that happen on specific days. I have tried and like software that allows you to create & schedule social media posts across various platforms (Facebook, Twitter, Instagram), but what I find most annoying is that these platforms require content in specific forms. For example, Twitter posts have a short text character length that becomes shorter if you attach other media, Instagram requires square images while Twitter requires longer, thinner image sizes, and some media formats are less compatible with Facebook due to the platform's algorithms wanting to keep you inside Facebook (a link leading out of Facebook is displayed less prominently than one that stays inside Facebook). I'm not sure to what extent this is possible, but I would absolutely use and be willing to pay for some kind of "smart" software that allows you to create a post once and then help tailor it for different social media platforms. For example, it would help you resize images to fit, change video formats, lengthen or shorten text, maybe suggest certain hashtags that are trending better on Facebook versus Twitter or Instagram.