Check out this playlist, which should do that and more
In regards to onboarding with native assets, even in US there are a handful of ways now: Kash, Kado, Alice, BinanceUS, Kraken, OKcoin, Crypto.com, etc. Not to mention all the options the rest of the world has. Check Anchor Protocol and select Buy UST at the top right for some more options.
I find the official website confusing, when I meant onboarding I meant onto their official DeFi platform.
The official website makes it look like they dont have one, there is no link to https://station.terra.money/ on their page which is a bit puzzling since other cryptos do spell that sort of stuff out a lot more
Luckily the video you put up has links to https://station.terra.money/ in the videos description. Which is a bit of an odd way to have to find it.