V2H unfortunately isn’t broadly available as a concept in the US yet.
For what it’s worth, most of the Kia/Hyundai V2L plugged into your house shenanigans aren’t as convoluted as they might seem. Basically there’s something called a Transfer Switch that you can get installed into your house’s circuit breaker. It tells your house to stop pulling power from the grid, and start pulling it from whatever you have plugged into the switch. It’s technology that’s been around for ages for gas generators. You can hire an electrician to install it. The big issue with the current Kia/Hyundai V2L and transfer switch setup is 1) the car’s doesn’t put out enough voltage to power an HVAC system in certain power outage situations, and 2) You don’t any of the novel back and forth charging where your house / the grid can use your car like a cheap reserve. Folks have used Ioniq 5s to keep a fridge and some lights going for days though.
At this point your options are be a Lightening early adopter, wait, or buy whichever electric car you’d like now and maybe look into a generator.