Welcome to the forum!
I can offer some advice on good auto choices, Get a pre owned Volkswagen
TDI of some description, say a jetta or a golf. Any 5-speed vw or audi with the TDI 1.9 L is going to give you great fuel mileage and a very long service life, 500K or better is common. I would suggest paying around $5000, as I am a cheap/poor son of a *****.