Protocols and methods are a body of literature that describe experimental procedures. A good protocol can save you countless hours in the lab with proven methodologies as a starting point for your research.
Descriptions of experimental procedures are widespread in the scientific literature. You may find a useful protocol in:
Some journals publish systematic or scoping review protocols. You may also register your protocol in PROSPERO or Open Science Framework. If you have questions regarding protocol publication, email your subject librarian for assistance.