How to lock screen with keyboard shortcut on mac book pro 2016 (which doesn't have power/eject button)?

Agreeing with other comments. This answer did anything but answer the actual question. What is the keyboard shortcut to put the new MacBook Pro to sleep? Suggesting we "choose Apple menu () > Sleep" is not a keyboard shortcut.

Pretty poor solution.

Power button.

The button at the far end of the Touch bar strip serves as Power button and the Touch ID button.

https://support.apple.com/en-us/HT207054

Startup

If your MacBook Pro (15-inch, Late 2016), MacBook Pro (13-inch, Late 2016, Four Thunderbolt 3 Ports),

or MacBook Pro (13-inch, Late 2016, Two Thunderbolt 3 Ports) is powered off, it turns on when you do these things:

• Open the lid of your Mac, even if it's not connected to power.
• Connect it to a power adapter while its lid is open.
• Connect it to a power adapter while its lid is closed and it's connected to an external display.

https://support.apple.com/en-us/HT207104

Restart

Press and hold the Power button down for 6 seconds.

Sleep

Pressing Touch ID won’t put your MacBook Pro to sleep. Instead, choose Apple menu () > Sleep.

https://support.apple.com/en-us/HT207054

Shut down

Press the Power button down.

Force Quit

Section: How to force apps to quit using Esc alternatives

https://support.apple.com/en-us/HT207358

wrong doesn't answer question at all,

OSX Daily posted a guide to this.

The abbreviated version: Go to System Preferences, Keyboard, Click "Customize Control Strip," then replace one of your icons with "Lock Screen."