Cheaper laptop with thunderbolt?

I'm looking for a 13-15 inch laptop that is best made of aluminum and should cost a maximum of 500 euro. I would have no problem buying a second-hand laptop! I definitely need a laptop with thunderbolt so that I can connect an external graphics card. In terms of performance and workmanship, I thought of something like a Hauwei matebook 14 / Honor magicbook, but with a thunderbolt.

Somehow finding something in the corner becomes almost impossible. TB is (as far as I've seen) only built into much more powerful devices. And there you can get some at the same price at the moment…

And you always have to be a little careful with used gaming laptops, something like that! You can look at them before buying. I've often stumbled across models that had great pictures, but the truth was more apparent than it was.

And you can forget something like the Matebook, these are more entry-level devices with little power. Their purpose is more office, surfing and multimedia.

The matebook would clearly have enough power because I would connect the graphics card externally via the thunderbolt if it were available. The ryzen 5 is strong enough in the event that the device is only used when I'm not at home. I also thought of a macbook where I could get one where I would only have to exchange the USB-C ports because they are defective. Windows can also be installed on the macbook with Bootcamp, as long as it is an Intel model. In the case of the Macbook pro 2018 which I saw.