Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) - Includes the original guidelines for the reporting of systematic reviews, as well as extensions related to the reporting of systematic review abstracts, network meta-analyses, systematic review protocols, scoping reviews, and search strategies.
Equator Network - Enhancing the Quality and Transparency of Health Research is an international initiative that seeks to improve the reliability and value of published health research literature by promoting transparent and accurate reporting and wider use of robust reporting guidelines.
An international registry of proposed systematic reviews. This provides documented proof of your intent to write on the research question. This may discourage others from embarking on the same project and possibly getting it published before yours.
For scoping review protocols, register at the Center for Open Science's OSF Registries
The official guide that describes in detail the process of preparing and maintaining Cochrane systematic reviews
The JBI Manual for Evidence Synthesis is designed to provide authors with a comprehensive guide to conducting JBI systematic, scoping, umbrella, and mixed methods reviews.