Which PC of them is good?

I'm looking for a PC with which I can work well with the Office programs. Watching videos, Netflix, Dazn, Sky etc… Shouldn't be a problem either. Of course you don't surf the internet either.

I looked a bit at afb and came across these computers:

https://www.afbshop.de/gebrauchte-pcs/?p=1&o=1&n=15&max=225.00&f=4%7C77%7C113%7C893%7C185%7C263%7C284%7C548%7C379%7C382%7C2175%7C25%7C40%7C20%7C281%7C268%7C1109

Which of them is the best? Or could you recommend others in this price range?

Your standards are not very high. In principle, every newer PC in the price range around 500-800 euro fulfills your wishes.

If your limit is actually that low, it's ultimately a matter of luck. All of the requirements will be met, the question is how long they will last.

They don't give a lot. I would take this one:

https://www.afbshop.de/pcs/15447/fujitsu-esprimo-p720-mt-core-i5-4590-at-3-3-ghz-8gb-ram-250gb-ssd-dvd-rw-win10home?c=31#0b9bf1ed88e38adde873d2d32efb5f0f

SSD and "good" processor are in there and is still one of the cheaper PCs.