Subcontacts Marketing Materials

We're a startup company who have developed an App and are looking for marketing materials to be posting on social media (maily instagram) to help spread awareness. The app is solely focused on the construction industry and allows General Contractors and Sub Contractors to find eachother, connect, and gain employment. Our main priority is creating a social network via the app, for the local industry of construction workers, and scaling that network to allow for mass adoption. We're looking for quick (:15/:30) videos and photos that grab the attention of a user and encourage them to download the app. (Website: https://www.subcontacts.com/)