I'm thinking about buying a UMPC, could I get some recommendations?

I was originally planning to buy a retro gaming handheld, but looking at the prices, it seems like adding a bit more money to get a UMPC would be a much better option.
I'm thinking of a price range in the 700,000 KRW range, but I wouldn't mind going a bit over.
ChatGPT recommended a used ROG Ally with the Z1 Extreme chip,
but could anyone recommend any other models?