Why schema still matters
Schema removes ambiguity about who you are and what a page covers. It helps only when it matches the visible content.
The core set
Organization, WebSite, WebPage, BreadcrumbList and Service on every site; FAQPage where a page genuinely answers questions.
Industry types
Product and Offer for ecommerce, SoftwareApplication for SaaS, MedicalClinic and Physician for healthcare, LegalService for law firms, RealEstateAgent, FinancialProduct, Course and LocalBusiness.
Validate and maintain
Validate on every template, keep dateModified honest, and remove markup for content that no longer exists.