ECRI Institute, the independent nonprofit organization that the United States federal government relied on to develop and maintain the now shuttered National Guideline Clearinghouse (NGC), has taken over the responsibility of providing this critical service to the healthcare community.
ECRI Guidelines Trust provides a centralized repository of current, properly vetted evidence based clinical practice guidelines summaries and other information. The site enables users to search and retrieve ECRI's summarization and full text of clinical practice guidelines from hundreds of participating guideline developers. Included with the results of a search of the ECRI Guidelines Trust will be unbiased evaluations on the rigor and transparency of the guidelines against the National Academy of Medicine standards fro trustworthiness.
Guidelines can be found at the websites of the sponsoring organizations (eg, major medical organizations and clinical specialty societies), or by entering "clinical practice guidelines" into a search engine. "Practice guideline" can also be set as a limit term for type of article when using PubMed to search the US National Library of Medicine.
Here are some examples of Guidelines published by organizations:
AAPM &R Endorsed or Affirmed Guidelines
Guidelines posted on the American Academy of Neurology
AHA/ASA Guideline for Adult Stroke Rehabilitation and Recovery - A guideline for healthcare professionals from the American Heart Association/American Stroke Association.
A site named GuidelineCentral has a free searchable library of Guideline summaries. You can create a free account to unlock more content, but some information is blocked by a paywall.