Many threads on various 'non
goggle supported' DJI drones in the past, and how you can use some of the
DJI goggle options or other on the market.
Search results for query: mini 2 goggles
"relatively inexpensive" is totally subjective, and not much help for suitable replies.
You can get $20 '
goggle' frames you can slide your phone into to get a reasonable FPV experience, at least enough to work out if you like it or not, or if it makes you feel nauseous.
I feel DJI white or RE
goggles, and a HDMI adapter + metre of HDMI cable is reasonably inexpensive now.
Those 2 model
goggles come up reasonably often here on the forum classifieds, obviously this place would be safe r to buy from than the web based selling sites.