There are many possibilities, but, perhaps, the late Admiral Grace Hopper. I once had the opportunity to hear her speak in an auditorium, I know it was sort of her stock speech, but it was great. She was an early computer pioneer. She may not have invented the word "bug" but she really did tape an insect into a log book with the note "first actual case of bug being found." She is famous for developing the computer language COBOL.

Some of her famous sayings, perhaps not original with her, were: "A ship in port is safe, but that is not what ships are built for," and "When in doubt, try it; it is easier to apologize than to get permission."

Roald Dahl.

I like Roald Dahl books.

Elon Musk is a good choice. I like the word "musk", too (FWIW). I'd like to have lunch with Carl Sagan, because he had a very lyrical/poetic way of talking about science. Or JRR Tolkien, because I Iike hobbitses and Gollums.

:)

Honestly, I don't have such a wish but if possible I would like to meet all the 7 billion people living in the world because everyone is famous in their own place. 

BTW, thanks for letting us know about the founder of Paypal, Space-X, and Tesla.