From what I've noticed, these three are fairly new and super relevant:
Voice Search Optimization: With the rise of voice-activated devices, optimizing for voice search is crucial. This involves using natural language, question-based keywords, and featured snippets to capture spoken queries.
Experience Optimization (UXO): Google's focus on user experience metrics, like Core Web Vitals, continues to grow. Optimizing site speed, mobile responsiveness, and user engagement is now more critical than ever.
User-Generated Content (UGC): UGC is gaining importance as it builds trust and engagement. Incorporating reviews, testimonials, and social media mentions can boost credibility and drive organic traffic by providing authentic, relatable content that resonates with audiences.