Looking for Facebook Groups Expert or Posting Strategy and Tools

I have a list of around 1000 Facebook groups that I would like to post mostly native video content from my page to in order to promote my page and brand on Facebook. I'm looking for either a good system to purchase, or someone to set this up for me. Please let me know if you are interested or have any recommendations. Thank you

I have a solution. Inbox me. I can do this via Massplanner software using my license