Mostly (but not uniquely) links from Google’s UX design specialization on Coursera.

UX research

• User Research in UX Design: The Complete Beginner’s Guide
• What Is Card Sorting In UX Design? A Beginner’s Guide
• User Research in UX Design: The Complete Beginner’s Guide
• How To Build A UX Research Portfolio (Step-By-Step Guide)

Design thinking

• Design Thinking 101-YouTube
• The Design Thinking Process-An Introduction-YouTube
• UX Design Process: Everything You Need to Know-Adobe XD Ideas
• What is Design Thinking? IxDF
• Design Thinking: A UX design framework - Coursera
• Offline UX design guidelines

Accessibility

• Optional - Additional resources on designing for accessibility - Coursera
• Designing for Global Accessibility, Part I - Library - Google Design
• Accessibility - Material Design
• Iniziare a utilizzare le funzioni di accessibilità sul Mac - Supporto Apple (IT)
• Accessibility Support - Official Apple Support
• Google’s YouTube Playlist for accessibilty