Good affordable laptop?

Hi, I broke my laptop and I need a new one quickly. I study and need it above all to surf the Internet and work with the office programs. I also watch a lot of Netflix on my laptop in the evening. It is very important to me that he is fast. Does jmd have a good one? In terms of price, of course, the cheaper, the better. 500 euro at most

https://www.ebay-kleinanzeigen.de/s-anzeige/lenovo-thinkpad-t420-aufgeruestet/1382722361-278-6807