EZMira app allows connection to HD Goggles from drones that have a video feed to a cellphone. This would include cheap toy drones and consumer grade aerial photography drones that have a cellphone video feed but lack an HDMI port on the drone's remote controller. The Mavic Mini is a good candidate for using the device called MiraScreen along with EZMira to connect to HD Goggles like DJI goggles. Many other brands of HD goggles should work as well if they have an HDMI input.

MPIO MiraScreen Wireless HDMI Display Dongle Adapter, 4K Ultra HD WiFi Streaming Video Receiver
https://amzn.to/2NulZhz

Seadream 5PCS 6" 15CM Micro HDMI Male to HDMI Female Cable Adapter Connector
https://amzn.to/2BvgzAv

If you have a 5G phone you can use this MiraSreen 5G adapter
https://amzn.to/2VilyeK
or this SAMMIX one
https://amzn.to/3dtpgs3

Happy Flying 😎