Finding cases: search Google, Google Scholar, and PubMed
Academic Grade-Fixing -- https://www.whistleblowers.org/members/mary-bozoyan/
Aviation safety -- https://www.salon.com/2019/11/17/air-war-a-relentless-whistleblower-once-more-girds-for-battle-over-aviation-safety_partner/
Engineering safety -- https://www.wsj.com/articles/he-was-ignored-workers-at-brazils-vale-predicted-dams-tragic-collapse-11559228132
Health Insurance -- https://en.wikipedia.org/wiki/List_of_whistleblowers#cite_note-185
Human Rights -- https://www.theguardian.com/australia-news/2016/jun/20/the-worst-ive-seen-trauma-expert-lifts-lid-on-atrocity-of-australias-detention-regime
Manufacturing Contamination -- https://www.theguardian.com/business/2010/oct/27/glaxosmithkline-whistleblower-awarded-96m-payout
Medical Malpractice -- https://web.archive.org/web/20120506101527/http://www.australianoftheyear.org.au/recipients/?m=toni-hoffman-2006
Occupational Health -- https://www.whistleblowers.org/wp-content/uploads/2018/08/496-us-72-english-v.-general-electric-company-copy-2-1.pdf
Research Misconduct -- https://www.justice.gov/opa/pr/duke-university-agrees-pay-us-1125-million-settle-false-claims-act-allegations-related
Tax Fraud -- https://www.whistleblowers.org/members/bradley-birkenfeld/
Psychological Referrals -- Your institution might provide free counseling but you might want to avoid internal referrals and on-site counseling due to privacy risks. Consider a referral from your local professional society, such as https://www.cpapsych.org/page/find
Ethics Consultation -- Ethicists can give advice regarding whistleblowing (e.g., case analysis and potential solutions from an ethics lens; guidance to resolve moral distress). Ethicists are generally available at universities, hospitals, and in private practice (e.g., http://www.asktheethicist.com/). Be aware that an "ethicist" is not the same as an "ethics committee." In fact, many ethics committees are staffed with lay volunteers or employees who are not ethicists.
Legal Referrals -- Your institution will have a team of lawyers helping them with your case (they won't be helping you). If you need a lawyer, get a referral from a previously published case, your local free legal clinic, or your regional bar association (e.g., http://www.calbar.ca.gov/Public/Need-Legal-Help).