Firstly, you need to pursue a Research Project under a Professor as the pre requisites assuming youre a student. Try undergoing a project at some of the Elite Technical Institutions like Top IITs, IISc Bangalore, IISER and so on. Once you complete the Project, with satisfactory results and certain novel observations or optimizations, you may perhaps work on a Research Paper jointly with the Professor. There are numerous International Journals like Nature, Springer Publications and many others, where you can publish your Paper, provided its eligible and non Plagiarised. As far as the subject of Interest is concerned, you must be inclined towards any particular Research Interest domain, in the wide field of Biotechnology, try contacting Professors working on that field and relevant Interest domain at IITs, IISc, IISERs. Professors at these institutes are notably good and will guide you towards a Research Paper Publication.