industry × type · collection
Portfolio × Portfolio
4 sites that are both. Each axis has its own page too: Portfolio and Portfolio.
Portfolio. A portfolio is a design system with one client. The freedom shows in the type choices; the discipline shows in whether the grid survives mobile.
Portfolio. Personal and studio portfolios. Fewer constraints, so the choices are more revealing than on a product site.
Lynn Fisher lynnandtonic.com Decode A site that reinvents its own layout at each breakpoint; the responsive behaviour itself is the artwork. 
Rauno Freiberg rauno.me Decode Design-engineering as taste: tiny interactions and precise spacing signal craft more than any case study could. 
Paco Coursey paco.me Decode Near-monochrome and ornament-free, which makes the small motion and spacing details land much harder. 
Brittany Chiang brittanychiang.com Decode The reference dev portfolio: a fixed side-nav, monospace accents, and content kept firmly ahead of decoration.