Social Media Posting - Giving Dog Lovers Chance to have there dog in a book.

I am looking at lead generation Facebook for a landing page which promotes online casting for Dog lovers to appear in a specialist Dog Book; the Book will be open to types of Dogs. You Job will be to prepare the social books to page ready to optimise traffic that comes to it and then post the casting opportunity in 300 large buy and sell groups, 300 dog lovers groups and 300 dog promotion groups and 300 small niche groups and 20 locations on Facebook Marketplace. I am interested in working if you have any other ideas and strategies to promote this page.