Looking for a creative Social Media Marketer

I run a global Marketplace, wherein we sell tools and templates from the experts worldwide. The business is in initial stages, but we are doing pretty good.

What I am looking for is a creative social media marketer, who can think beyond just normal posts and can come with a plan to attract by his/ her unique ideas. Mainly, I am looking for:
a. Linkedin
b. Facebook
c. Instagram

Long term opportunity, if everything goes well