If you mean to publish in a journal, see these discussions for recommendations:

https://www.researchgate.net/post/What_are_the_procedures_for_publishing_a_research_paper/1

https://www.researchgate.net/post/For_publishing_article_in_any_journal_which_necessary_steps_should_be_taken_care_by_a_new_researcher/1

If you mean to "publish" with ResearchGate, see my reply to this question: https://www.researchgate.net/post/What_are_the_requirements_for_publishing_a_paper_in_this_journal