I. Famous Speeches
This is an incredibly resource-rich website that includes a treasure trove of speeches for inspiration. https://www.americanrhetoric.com/index.htm
II. Quotes
Finding the right quote can elevate any presentation or speech. A quote can succinctly highlight your overall message and drive your point home.
https://slidelizard.com/en/blog/best-powerpoint-presentation-quotes#business
III. Literary Devices
Including several literary devices in your speech can make your message memorable in the minds of the audience.
https://www.grammarly.com/blog/literary-devices/
IV. Public Speaking Books
List of different public speaking books.