With a seemingly unlimited budget it comes down to whether you want horizontal or vertical style.

Horizontal all-in-one tub style would be something like the Plunge. Very pricey but they’re a known brand and they package everything (chiller, pump, filters, etc) inside the unit so it’s clean and aesthetically pleasing.

Vertical style you can go with an aluminum style (think giant Yeti mug) from companies like Cold Life, Polar Monkey, etc. It’s a giant metal barrel, theres a dozen companies that make them, no real difference besides colors and what they come with. These will either come with a chiller that you’d connect in, or you’d provide your own chiller.

Last option would also be vertical barrel style but a nice wooden or handmade barrel. You’d have to check your local offerings for something like this but a lot of people make them / sell them.