olemus
inimrühma arvamuste suunaja ja mõjutaja

Wiktionary:
one who guides and influences public opinion

ülevaateid
https://en.wikipedia.org/wiki/Opinion_leadership

https://sendpulse.com/support/glossary/opinion-leader

https://core.ac.uk/download/pdf/76387384.pdf

https://cyberleninka.org/article/n/686717.pdf

https://journals.sagepub.com/doi/10.1177/2056305116665858