When would you recommend SSR, CSR, SSG or hybrid rendering?

CSR

Useful for highly interactive applications, but puts more responsibility on rendering.

SSR

Delivers HTML from the server for each request and can provide meaningful initial content.

SSG

Generates pages ahead of time and works well for content that can be generated without request-time computation.

Hybrid

Uses different approaches for different application areas.

A sensible architecture might be:

Marketing pages → SSG
Product pages → SSR
User dashboard → CSR

The decision should account for SEO, UX, performance, content freshness and engineering cost.