Eco Hitch is a brand from a company in Kent, WA called Torklift Central. They are currently offering two models for 2019-2022 Niro EV, the x7440 and the x7442, on their web site. I called them yesterday and they will also install these hitches; their web site also lists authorized resellers/installers in various locations.
If you have a 2022 Niro EV, I also noticed that Curt has come out with a model #13497 that is advertised to fit the 2022 Hybrid, PHEV, and EV models with "no drilling". The Curt model mentioned above in this forum is the #13329, which they say will fit 2017-2022 but excluding PHEV and EV models (which seems to fit with the experience of others trying to install it on their Niro EV).
All of the Eco Hitch and Curt Hitch models have a 2" receiver. The Curt is considerably less expensive, especially if you get it on etrailer.com. I might try it... if so I'll report back on this forum.