See this help page for instructions how to add published or unpublished research to ResearchGate: https://help.researchgate.net/hc/en-us/articles/14293005132305-How-to-add-research

See these discussions on how to increase the number of citations:

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

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

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

https://www.researchgate.net/post/How-to-increase-my-citations/1

https://www.researchgate.net/post/How_to_increase_the_citations_of_your_sole-author_or_multiple-authors_papers_published_at_the_Renown_Journal_in_the_field_of_your_research/1

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

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

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

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

https://www.researchgate.net/post/How_Citation_can_be_increased_in_view_of_h-Statistics_for_a_Scholarly_article/1

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

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

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

https://www.researchgate.net/post/The_power_of_keywords_and_audience-centric_papers_Reflections_and_thoughts_on_number_of_citations_publishing_and_highly-impacted_journals/1

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

See also:

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

https://www.researchgate.net/post/How_can_I_make_a_previously_published_article_book_or_book_chapter_more_visible_and_accessible2/1

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