First car recommendations

My car keeps letting me down and the upkeep cost keeps getting bigger and bigger so i decided to start looking for a new (new/used) car. I am not necessarily looking for the cheapest car out there, but i still don't want to put all of my income into paying off or servicing a car. What would be a good medium to big sized car, that is reliable, won't keep me from investing into other aspects of my (financial) life and looks decent-ish.