Military - Spouse resident of a different state

My husband is active duty military and we are currently living in Alabama for his training. I work a normal civilian job in the state and have changed my residency over to Alabama as we bought a car in April and one of us needed state residency to register it. My husband never changed his residency over as training for his job is almost never more than 2 years so he has maintained residency in Ohio. 

We want to file jointly for federal but I’m not sure if we can file jointly for state as I have found some conflicting information. And if we can file jointly for state I don’t know how to determine which state it would be under. Not sure if his military status affects this. 

Is there a version of turbo tax premium that can help us work through this? We should only have 1040s no schedules.