What each path actually gives you — strengths & weaknesses
1) Credentialed academic courses (example: Coursera — University of Washington)
Strengths: Pedagogy-backed syllabus, graded assignments, video-recorded speech submissions, peer feedback and sometimes even VR rehearsal; certificate is LinkedIn-ready and useful for CVs. Weaknesses: less frequent, structured schedule and sometimes less iterative live feedback than an in-person club. Best for: learners who want a researched, scaffolded path and a recognized certificate. (Coursera)
Coursera — Introduction to Public Speaking / Dynamic Public Speaking (University of Washington) — course preview / promo (course page has previews)
(Coursera)