The Preferred Reporting Items for Systematic Reviews and Meta-Analyses are the standard that the majority of journals require you to follow in order to publish a systematic or scoping review. Note that PRISMA is not a methodology guideline for conducting reviews, but rather a guideline for reporting reviews (i.e. what to include in the manuscript).

The official document describing the process of preparing and maintaining Cochrane reviews.

Comprehensive guide from JBI for conducting a variety of review types, including systematic reviews, scoping reviews, and umbrella reviews.

MOOSE is a reporting standard for meta-analysis of observational studies in epidemiology.

Recommendations from the Health and Medicine Division of the National Academies (formerly the Institute of Medicine) for standards for systematic reviews of the comparative effectiveness of medical or surgical interventions.