Recommendations for a first car

Hello, everyone.

I'm saving up some money for my first car but I don't know anything about brands or models, which is why I'm posting here. I want something that is nice looking but still good on gas. I really like more boxy-type angular cars over rounder looking ones, but as long as it's still semi-cool looking it's fine. My main concern is affordable maintenance (not an obscure car with hard to find/expensive parts) and like I mentioned, good on gas.

I initially really wanted a smaller truck, something like an old ford ranger, but my partner already has a nissan titan that is horrible on gas. If anyone has any small truck recommendations that fit the criteria, that would be cool too.

Any advice or suggestions are appreciated.

Edit: Looking for something on the cheaper end under 15k, definitely pre-owned