I bought an AHP Alpha‑TIG 200X: https://www.amazon.com/AHP-AlphaTIG-Stick-Welder-WARRANTY/dp/B076BSD6PG. Check out the reviews - lots of people having good luck with them, not just hobbyists.

The prices vary based on availability (they tend to sell out quickly, and have limited production runs), but are generally around $800 and have lots of nice features. The pedal it comes with is low quality, otherwise it's a lot of welder for the money.

I know of a chassis shop that uses an Eastwood TIG 200 AC/DC, and their workmanship is second to none. If you are planning large production runs, I'd get the red or blue boxes. Otherwise, I'd spend my money somewhere else.