Searching for robust, Spartan car up to 2000€

Hello dear car fans and screwdrivers, I unfortunately did not have a great experience with the car purchase and the ones I made were very bad. I had an Astra F, from the year 94, for 110€, on my last and first own car purchase, which gave up the mind 3 months or 600€ later with a broken cylinder head seal. I would be very happy if you could help me roughly and have already given me a certain overview in my own research I’m looking for a car that is … – robust and durable – low maintenance costs – look and equipment do not matter – it shouldn’t be a fuel gun ( <120hp) Since I really don't know about cars at all, it's pretty hard to find suitable cars. The standard cars alla Polo and Golf are too expensive for me from the insurance. Besides, my girlfriend has 5 (small) dogs, which is why the car should be too big than too small. I have to drive a car. a lot, just to visit friends/family and to shop. What would be such a robust car? Astra G vlt. ?