There are many types of knowledge syntheses and it is important to choose the right type of synthesis for your question. The following resources provide a general overview of the types of knowledge syntheses being used in current research.
This video is the recording of a webinar by Dr. Andrew Booth, describing the different types of reviews.
Booth, A. Fifty shades of review [Internet]. Sheffield: EAHIL. 2016 Nov 24. Video: 70 min
A systematic review is designed to answer precisely defined, narrow questions and may be limited to specific study designs.
There are many guidebooks to help you through the process of conducting systematic reviews, and these books can also be useful in guiding you through other types of knowledge syntheses. It can be a good place to start for any review.
These articles provide guidance on specific types of systematic reviews.
A scoping review aims to address broader, more complex, and exploratory research questions where many different study designs may be applicable.
These resources will provide definitions and guidance on how to conduct a scoping review.