I think it is important when asking a question not to be so general. There are many different online open access material you can consult on this topic but it will depend on your area of interest (medicine, biology, educational practice...).

Your question is very broad to be answered rapidly.

maybe the first step would be to contact your librarian who will help you to define the different steps after you define the question you want to answer.

We have recently published a paper for people with no experience in research defining what a systematic review is. You can check it out here: Article Systematic reviews: Key concepts for health professionals

Dear researcher, there are certain basic steps to follow while conducting any Systematic Literature Review (aka SLR). Here, I have tried to provide you with a video link to get some idea on this. However, it would be better if you study some quality research papers on SLRs. Best wishes.

Video link:

Thank you, sir.

Dear Nasir,

There are many ways and methodologies to perform a SLR. You can see one example here: Article Hybrid approaches to optimization and machine learning metho...