It will be better if you go for an SUV; even small SUVs will give you better headroom. In the small car segment, you can look at the Tata Punch, which has wide-opening doors, making ingress and egress easier, good headroom, and an adjustable headrest can also add to your comfort.
This Tata car also gets a spacious cabin, lots of features, a 5-star safety rating, and is widely popular, so you get better resale value, too.