If you don’t live in the rust belt, find you a GM W-body with a 3.8 V6. Pontiac Grand Prix, Buick regal, Chevy Impala, maybe more I don’t remember. Cheap to buy, reliable drivetrain, plentiful and cheap parts. Get a double-DIN radio unit with Android Auto/apple car play for that touch of modern convenience, it’s super easy to replace yourself even if you aren’t super handy. Just look underneath and make sure the rockers aren’t rusty (rockers are the part of the car directly underneath the doors, you need to look at them from below the car to see them because there is usually a plastic cover over them).