website and on Amazon.
Ester Friesner meets the criteria for the letter "F" both with her last name and her style (funny). I know her best from her Chicks in Chainmail anthology series, which has been out for over a decade and is still running. As I researched her, I learned she's currently writing about historical princesses. You can learn more about Friesner from her Wikipedia and Amazon pages.
If you know of any other SF/Fantasy authors who fit into this category, please share them in the comments.