Usually, review papers do not include new research results. They just provide a discussion of the results in several research papers. However, there may be a gray area between both kinds of papers.

Concerning conference papers, see:

https://www.researchgate.net/post/What_are_the_difference_between_conference_paper_journal_paper_and_book_chapter

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

A research paper presents original findings from a study, a conference paper is a research paper presented at a conference, and a review paper summarizes existing research on a topic. To publish original research papers, consider reputable journals in your field, such as those indexed in databases like Scopus or Web of Science.