Easiest to check first is the tire pressure. Be sure it’s on spec (at least not significantly different amongst the tires). If that’s not the problem, try rotating tires and see if it drives any different. My 07 Focus pulled right more than just a little. Cross-switched the front two, and the pull almost went away. Still had a little. Switched rears and fronts, still pulled right a little. Took it in for alignment, they increased the camber on the right side, and it’s just fine now. HTH.