Create a Portfolio of Work Samples for a Job Search

Act as a career portfolio coach. I am building a portfolio of work samples to support my job search for [TARGET_ROLE]. My background includes [BACKGROUND_SUMMARY]. Help me: identify the 5 types of work samples that would be most impressive for this role, suggest what to include if I do not have a direct sample (e.g. a case study, a mock project), write a 2-sentence description for each sample that positions it strategically, and advise on the best format to present the portfolio (PDF, website, GitHub, etc.).