Whether you’re looking to see headlining stand-up acts and household names such as Tiffany Haddish and Gary Owen or catch some of Phoenix’s up-and-coming local standup talent, you’re guaranteed to let out a few laughs at one of metro Phoenix’s comedy venues. For the outgoing type, there are even a few that offer stand-up classes or open mics, so you can test to see if your friends were actually telling the truth when they said you were funny…