Jailbreaks have been much harder to come by since iOS 10. There actually hasn't been a publicly available jailbreak of the current version of iOS since ios 9.3

Jailbreaks have been much harder to come by since iOS 10. There actually hasn't been a publicly available jailbreak of the current version of iOS since ios 9.3.4. The only way to have a jailbroken phone on 10 was to know ahead of time to stay on iOS 10.1.1. By the time the 10 jailbreak was available Apple had already patched the vulnerabilities and made it impossible to downgrade. It's not something you can do on the spur of the moment. Either you spend an ungodly amount of time writing your own jailbreak, or you monitor reddit like a hawk trying to anticipate which version of iOS is most likely to be hacked in the future. On top of that there is no such thing as an unteathered jailbreak for iOS 10. The best you can hope for is a semi teathered jailbreak which requires you to manually run an app every time your phone restarts.