Reliable beginner car up to 2000€ searched!

Hi all, my little sister will be 18 years old in November. That’s why we want to buy her a beginner car. Unfortunately, the budget must not exceed 2000€. And should not be too expensive in maintenance, insurance, tax.. I’ve already looked for cars / recommendations. Found the following models. -Peugeot 206 -Renault Clio -Ford Fiesta / Ford Focus -Polo 6n Or something completely different? The look plays a minor role! Prinizipiell I have a question about what you would like to see: An older German car (e.g. polo year of construction year 1997, or rather a Peugeot/Renault/Ford from year of construction ~2005?) How could you recommend to me what brands / models? What do you have to pay attention to when buying them? Sorry, I don’t know so much about cars! I know that the criteria are “difficult to find” – but that’s exactly why I turn to you experts… =) I thank you so much for your help! Greetings scavio