New start up - social media assistance required

Hi there - I am looking for someone to help out with posting on various social media channels for a new start up client we are working with. Will mostly focus on Facebook and Instagram to begin with. We need to find a way to raise interest amongst our target market. Likely to include prize draw promotions, polls etc. Anything that generates a bit of excitement. This is all about conversions - not sales, but sign-ups to a new marketplace app. It's operating within the security operative marketplace. We need to sign up security operatives first of all. Need you to create your own assets in Canva or similar using brand assets we provide. I look forward to hearing from you. Thanks, Steve