Jack Canfield - Motivator, Speaker, Author dozens of books, including the highly recommended The Success Principles. I have bought or recommended this book to dozens of people over the last 8 years or so.
https://audiobookstore.com/audiobooks/the-success-principles-10th-anniversary-edition.aspx
Dave Kerpen - Author of Likeable Leadership and guru of all things likeable. The fact that Dave is the master of the "How can I help you?" method of networking is not only a breath of fresh air, it also shows that he has the approach that will continue to guarantee him success. He is creative and inspirational, and seems very comfortable in his own, slightly goofy, skin. Just seeing a picture of him makes me smile and inspires me.
https://www.prhspeakers.com/speaker/dave-kerpen
James Altucher - Entrepreneur, Speaker, Author of 10 books, including Choose Yourself, which I recently read. Really unique and motivating. Altucher is smart as hell and doesn’t hold back.
https://boomersreinvented.com/choose-yourself/
Drew Dudley – I don’t believe Drew has written any books yet, but he is absolutely amazing. I, like many others, was introduced to him through the YouTube video from his “Leading with Lollipops” TEDtalk, however everything I’ve watched of him is outstanding.
Sam Glenn – Motivational Speaker, urging you to “Choose your Attitude”. All his stuff is great, but his video “Falling off an Airplane” works every time if you need something to help you “Choose your Attitude”!
http://everydayshouldbefun.com/sam-glenn/
Jimmy Buffett – If the above suggestions don’t work, maybe try swinging in a hammock to a gentle breeze with some Jimmy playing in the background.