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Use InsomniaX https://www.macupdate.com/app/mac/22211/insomniax
How about this one?
Requirements for closed-display mode
To use closed-display mode with your Mac notebook, you need:
An AC power adapter
An external keyboard and mouse or trackpad, either USB or wireless
A USB-C to USB adapter if you're using a USB mouse or keyboard with MacBook (Retina, 12-inch, Early 2015) and later or MacBook Pro models introduced in late 2016
An external display or projector